View Full Version : Which 2 iSonic boards with 3 sails for 100kg

3rd December 2010, 07:59 PM
Hi Starboad Team,

I want to buy a complete new equipement setup.
Can anyone give me some advice, if the combo I think about makes sense?

I am 192cm tall and my weight is about 100 kg.

Most of the time I windsurf on lakes like Lake Garda.

I want to handle windspeeds from 4 to 7 bft, that means from 10 to 32 knots.

I would like to reduce my gear to 2 boards and 3 sails, if possible.

Boards and sails should be slalom/race.

Here are my thoughts about the setting:

1. isonic 117 carbon 2011 with 7 and 8,6 rs:racing or similar
2. isonic 147 carobn 2011 with 8,6 and 10,7 rs:racing or similar.

Does this make sense?

Or do I better chose a formula board for the big sail?

Thanks for your help!

4th December 2010, 03:51 AM
Hi Surfmax!

This is an interesting question. I have ordered an ultrasonic 147(I am 90 kg) and a severne turbo 9.2 , and I am really wandering how much wind and chop this 147liter/93 cm board will take.
I will give you my opinion as soon as I have given it a try.
I have a kode 112 with an 8.0 severne ncx as my next sail. Maybe I need a smaller slalom board in between... like an isonic 107/117 ?

4th December 2010, 06:32 AM
Not *board team, but here is what I think (I've sailed several iSonics and have 3 mates who are around 95 kg - all freshwater iS sailors).
If you go for 2 slaloms, you can go smaller, especially for the smaller board. iS117 (75wide) is not going to be any fun in Force 7, no matter how heavy are you. You should look at the 107 and even 97 models depending on how steady is the wind. You'll have no problem with 97 in steady force 6. From my experience (and my heavyweight mates'), iS137w85 is big enough for all lightwind duties, but I haven't sailed a slalom as wide as iS147w93 so I can't comment. And I'm not sure iS137 can carry a 10.7. If you have a lot of 10kt days you'll be better off with a Formula anyway.
So you need to estimate your wind conditions realistically and go from there.

4th December 2010, 11:39 AM
Hi Markus

First question will be : Are you going to race under slalom riles
If yes you can't go over 85 cm wide
At this time I recommend you the iSonic 137
If you don't care about this and would to have the best board as possible for your 10.7 foreaching that will be the Ultra Sonic 147
For the smaller board the 107 will be better for the 7 than the 117
8.6 still very good on the 107 & the 147
Hope this
All the best

6th December 2010, 07:11 PM
Hallo Markus!
Like Remi told, no races, than go for big sails in 10knts wind to Formula!
If you like to compete I reco you for light winds iS137 with Severne Reflex II 9,7
Than go for iS117Wide with Reflex II 8,6 and 7,8
30knts in choppy water are not any problem with that combo (177W&7,8)!
If you go Sylt,....waves...32knts constant take the iS107 & Reflex II 8,6 and 7,0.
The 8,6 sizes both boards!
Hope it helps!

7th December 2010, 04:23 AM
Hi all

A big surprise Come soon in video of the Ultra Sonic 147 in very light winds vs Formula HWR on reach :)

All the best

7th December 2010, 04:27 AM
I cant wait !!!:-)!!!!

7th December 2010, 05:16 AM
Come on!! upload the video....

7th December 2010, 09:25 PM
Thanks a lot for all the answers! They were very helpfull...

My conclusion "on the paper" so far is:

4bft -> 137 with 9,7 Relfex II or 10,0 RS:Racing Evo III, 54 cm fin
5bft -> 137 with 8,6 Reflex II or RS Evo III, 48 cm fin
6bft -> 107 with 8,6 Relfex II or RS Evo III, 44 cm fin
7bft -> 107 with 7,0 Reflex II or RS Evo III, 38 cm fin

Of course the setup may slightly vary due to how constant the wind is and how big/choppy the waves are.

With this setup I can still think about adding low wind range by entering the formula scene with corresponding board and 12 m2 sail using also the 9,7/10 sail, and adding high wind range by buying an isonic 90 or even an iSonic Speed W58.
Maybe I will even diversify inbetween, if I get keen on hitting the Slalom competition scene :-) But all this is future and "evolution"...

I still have two more question:

1. Is there a noticeable difference between the two sail brands mentioned above (Severne Reflex II and Neilpryde RS:Racing Evo III)?
2. What is the difference between the Reflex Slalom 9.6 and the Reflex Formula 9.7? Which one do you recommend for the iSonic 137?

Further comments are very welcome!

Thanks and cheers,


8th December 2010, 02:58 PM
9.7 is the better one as it was developed off the 9.6 making one more cam together with touch longer boom to make the 9.7 which after out performed the 9.6 even for slalom. 9.6 was still good and we were surprised the 9.7 was better even for slalom and is my choose.
Cheers Steve Allen AUS-0

8th December 2010, 03:14 PM
If I where you I will take north sails warp f2011 10,0m it's work better than both of this.
All the best on North Sails Cyril F-71

26th December 2010, 11:54 PM
9.7 is the better one as it was developed off the 9.6 making one more cam together with touch longer boom to make the 9.7 which after out performed the 9.6 even for slalom. 9.6 was still good and we were surprised the 9.7 was better even for slalom and is my choose.
Cheers Steve Allen AUS-0

reflex 2010 9.6 worked according to severne with 490 mast
reflex 2010 9.7 with 530

For 2011 for the 9.7 it says it works better with 490, does this work better for slalom and 530 for formula..? or 490 in any case...?

If in 2010 9.7 model, If I used 490 instead of 530, how it would affect the sail..? (i am talking about formula racing.)

18th January 2011, 05:50 PM
I got the same question like TSAF for the reflex 9.7 2011.

Wich mast will be "the best" on the 2011, the 490 +BE40 or the 530?
What is/will be the difference in slalom/formula use?

The severne web site says, 490 is recommended and the 530 is compatible.
Does this mean, the 490 is the better choice for all conditions?

All the best,


20th January 2011, 02:01 AM
Hi all

A big surprise Come soon in video of the Ultra Sonic 147 in very light winds vs Formula HWR on reach

Hi Remi,

I cannot wait to see your video :). I like to see the difference between US147 vs HWR!

I am thinking of buying a light wind board. When can we expect this video?

Best regards


20th January 2011, 10:48 AM
Hi Marco,

Strange you can't see it, please check again and you can found more on my Facebook

All the best

20th January 2011, 04:49 PM
Thanks Remi,

I found it on your facebook! great! :)

Do you now with howmany kts they where surfing?

best regards,


20th January 2011, 05:33 PM
Hi Marco

The winds was from 8 to 11 knots max

All the best

22nd January 2011, 06:34 PM
Hi Remi,
I'm really interested in the Ultra Sonic and would like to see this video, but can't find it.
What is the trick? Must i be a friend?
Found You at facebook:
But no fotos or videos.

mark h
22nd January 2011, 07:17 PM



22nd January 2011, 07:28 PM
Thanks Mark!

9th February 2011, 05:44 PM
Just out of interest, what size overdrive sails were they using in the video?

The reason I ask this question is I'm on the point of ordering a US147 and currently have an 2010 11m overdrive, some people are telling me this is too big and that I would be better to use a maximum 10m sail with this type of board, I am 85Kg's.

10th February 2011, 06:49 AM
Hi Mcross19,

On my Facebook you can see 2 video, one in 9.7 Overdrive and the other one with 12 Reflex II.

The result with 9.7 on this board against a Formula with 11 is already impressive for reaching. The US is faster and of course more comfortable and easy.

Hope this help



All the best

10th February 2011, 12:53 PM
Thanks Remi, but what are your thoughts on the 11m on this board with my weight? Should I stick with it or change it for a 9.7m. Just after your opinion, Martin