View Full Version : I-sonic for 7.8 and 9.0

23rd September 2008, 03:48 PM
Hello everybody, I have a lot of questions about the i-sonics...
I currently own a 133 2007 which i use with 7.8 rs4 and 9.0 warp 07. Fins are sl2 46 and drake 40. My weight is 70kgs.

1) What would the 122 08 bring in terms of performance, control and early planning?

2) The 133 07 needed a rake +2 (on the sl2) to be high on chops and effective. Would I need this rake +2 on the 122?

3) Will I lose planning ability in 10 knots wind?

4) What would you do?

Thanks a lot

23rd September 2008, 04:55 PM
IF you have a 122, why buy a 133? I would skip a size at least between them.

23rd September 2008, 05:53 PM
Hi sylvain. The IS122,46cm fin and the 9m warp you should plane in 10knots no worries
with your weight. Im 85kg and I plane in 10knots with that combo.

ta Vando

23rd September 2008, 11:04 PM
Hi Sylvain

I sail '08 iS122 with 7.3 and 9.0 sails and I think it's a brilliant board (most sailors seem to agree with me ;) ). I'm 85 kg.

A 95 kg mate is using iS133, I've sailed it several times, and I think at your (light) weight, you have no real advantage with such a wide board (85cm?).With iS122, you'll lose nothing at the light end of the range (early planing), but you'll gain top end control.

I don't know anything about sl2 rake, but maybe your iS is different from '08 model (dual planing flat, etc?). I know that '08 stock fins are better performers than 07 & 06 versions.

24th September 2008, 05:24 AM
Hi Sylvain,

I suppose that you will replace your 133 by the 122, in this case yes it's a good choice for your weigth under in the slalom rules. The planing will be close to be the same with more speed for you.

Your 46 fin will be perfect for light winds with the 9m².

All the best

24th September 2008, 09:18 PM
Thanks a lot to all :)

That's right, i intend to change my 133 2007! But I didn't want to lose the planing ability of the 133. I've had problems with the 133, board sticking to the water with the sl2 46 raked 0. I heard the 08 are looser, hope it fixes the problem.

So we'll say 122 warp 9.0 and sl2 46 for 10-20
and 122 rs 7.8 and what fin?

For the 7.8, would you recommend sl2 40? I can get a hand on a sl4 40, but I don't know what this fin is worth...

24th September 2008, 09:39 PM
Hi Sylvain,

For the 7,8, yes the SL2 or SL4 are good choice. You will have just more power with the SL2 and more top end speed with the SL4

All the best

24th September 2008, 10:26 PM
Thanks a lot!

Toujours au top Rémi, et réponse rapide comme dab!
Je te contacterai pour un voyage en martinique guadeloupe cet hiver!

And for the fins length, what would you propose, 40 or 42 for the 7.8?

Last thing, I can choose in the drake fins two of them, knowing I already have the sl2 46.

What would you choose? 48 drake for early planning, 46sl2 for medium wind, and drake 42 for high wind?

Are 2009 drake better than 2008?

I know that's a lot of questions, but they're paramount to me...

25th September 2008, 08:06 AM
Hi Sylvain,

Oups, I forgot to put the size, 40cm will be good to have a good glide.

AU plaisir de lire ton feed back.

All the best

28th September 2008, 12:06 PM
Remi, does the SL2 have the same rake as the Drake Slalom Pro? I tried to use a Select S07 on my Is 122 07 but those fins are too much upright compared to the Drake, causing to board to stick badly. I have re-raked that Select to the same rake as the Drake, and now the board is fully unlocked :)

29th September 2008, 11:09 AM
Hi Nifty;

Yes you right, the rake is very important to have the great lenght balance for the board.

And yes SL2 and Drake Slalom Pro have the same rake.

All the best

29th September 2008, 01:19 PM
Excellent, thanks Remi.

29th September 2008, 07:00 PM
Thanks also...

One last question.

I heard the best fin for overall performance was the sl2 46, and I agree with that, I love those fins!

For overall performance, is sl2 40 or 42 the best for 7.8? I used 40 for the i-sonic 133 2007 and it felt great!

I will order one, do you think, Rémi, that sl2 40 rake + 2 is a good choice? (or no rake at all on the 2008 models?)

Thanks so much!

29th September 2008, 11:11 PM
Hi Sylvain,

Overall performance the SL2 is a good fin for sure, but I prefer the SL4 who give you a beter speed.
Hum 40 is really small for the 133, my smaller one on this board was SL 2 44cm with Code Red 7,7.
The rake of the Custom Deboichet is changing depend of the size, more straith in the bigger size. And all of them work great with the iSonic.

All the best

29th September 2008, 11:16 PM
Thanks Rémi :)

I want to be fast on the water :) but I heard that the sl4 lacked a little power, so I thought for the 7.8:
- sl2 40 because it is powerful and fast
- sl2 42 because it is very fast but there isn't enough power if the wind drops.

So Rémi, just tell me what YOU would choose for long distance racing:
sl2 40 or 42
sl4 40 or 42.

And after this one, I'm done, and I write JJ deboichet to order it!

1st October 2008, 09:34 PM
Hi Sylvain,

I will choose the SL4 42 for the iSonic 122 with 7,8m²

All the best

1st October 2008, 10:30 PM
What is the best Isonic for a 110 kilo Rider in light winds??

4th October 2008, 03:17 PM
Philsurf, it actually depends on the max sail you want to use. People on this forum will have a more accurate opinion but I believe if sail>8.5 go for the 133 and if sail> 9.5 go for the 145!

And that also depends on the smaller board you have. If you have the 122, go for the 145...

As for us, I have a sl2 38 I wanna test on the 122 with 7.8. That will be:

- i-sonic 122 + 9.0 => Drake 48 vent faible
SL2 46 vent modéré ou mer formée

- i-sonic 122 + 7.8 => Sl2 46 si irrégulier
Drake 42 (remplacé un jour par sl4 42)
SL2 38 (for test or high speed)

Any feedback would be welcom, and THANKS THANKS THANKS I see things clearer now :)

28th October 2008, 03:17 PM

Tested in 10-23 kts with warp 7.8 and sl2 42, it is...

Legend... wait for it... DARY!!!!!!!!!

Amazing, there's a world between the 22 08 and the 133 07...

About planing, I didn't feel so much difference between the two
About control, well, the 122 rocks
About speed, couldn't really compare, but the feeling is here
About jibe, easier to begin, and speed too easy to keep

That's it, I love this board, and the sl2 42 is a must have for 7.8

Question remains for 9.0. I tried the sl2 48 yesterday with flat water and very very feable wind (gusts at 12), and with energic pumping, the board flies on the water. But question is beyond 13 kts, is sl2 46 way faster than 48, or the lift of the 48 compensates the speed of the 46? Cause I can't afford 2 fins for 9.0, and I often sail in 10-15 knots...

Thank you starboard and the R&D team for making it real

28th October 2008, 04:42 PM
Hi Sylvain,

Happy that you are satisfy.
For the fin I recommand you the SL2 46 for the 9m² and enjoy your board.

All the best

28th October 2008, 07:02 PM
Hi all, It is funny that you guys talk about deboichet fins like they are in the local pharmacy and a a great price , while on the other side this fins are not readily available and they are expensive as hell.
Can anyone tell me where I can get this fins right now with out having to order them and wait for over a month to get one and pay $200 in shipping. BEcuase it seems to me that you guys have a full bag of them in every corner.

29th October 2008, 01:33 AM
Well, actually JJ Deboichet lives next door, so that makes it simpler!

But what you say is true, and I have noticed that few people buy it brand new, most often you can get it used, or barely used at a very good price (165-200€) from pros or people who made a huge order (like 5 fins) and got a good discount.

But then again, in southern France, a lot of people ride DB, and when you try your friend's board, you want the same fin, and there you go!

That's the same for vectors... I would love to try one, but never even saw the color of it...

So I'll stick with the deb, though they're expensive, they rock!

29th October 2008, 01:47 AM
Hi nonopr,

I would recommend contacting Bruce Peterson of Sailworks regarding Deboichet fins. From what I understand, he carries stock on the formula fins, and he just might have some slalom designs too.

29th October 2008, 02:43 AM
Hi nonopr,

I would recommend contacting Bruce Peterson of Sailworks regarding Deboichet fins. From what I understand, he carries stock on the formula fins, and he just might have some slalom designs too.

Thanks Steve C: