Light-wind Blaster 140-155L - iSonic or Futura?

[ChrisN]

Dear SB team

I am considering a light-wind board - not a Formula though! Looking for either Futura or iSonic in the range of 140-155L for planning in 5-15 knots.

I'm appr. 90 Kgs (185 pounds?) proficient (np to waterstart in smaller boards), yet I am learning slalom gybing. I expect to sail that board in relatively flat waters with wind chop (typically off- to sideshore winds).

I have 3 freerace sails in 6.5, 7.5 and 8.5 m2 (Simmer) and consider a 9.5 (if I can fit in on a 490 cm mast w. extender).

I need to fit this board in between the following:

1. Naish 11'9 SUP (for light-wind fun) for 1-5 kns
2. NEW BOARD for 5-15 knts
3. RRD X-Fire 120L 2009: 15-20 knts
4. SB HyperSonic 105 (from 2003, yet acquired new in 2007): 20-25 knts

What board would you recommend me ? Should I go for the:

1. iSonic 144 or 150?
2. Futura 141 or 155?

Finally, should I go for WC or Wood? Also seems that the 2009-10 models are VERY similar! Any recommendations are highly appreciated!

Best Regards and thanks for this great forum

ChrisN