[Erik Loots]

Hi,

I replaced my hypersonic 105 wood for an isonic 105 dram.

Difference: (1=bad 10=best)

hypersonic 105:
lowwind: 9
highwind flat water: 8
highwind choppy water: 5
highwind chaos water: 4
big sails: 9
small sails: 7

isonic 105:
lowwind: 8
highwind flat water: 9
highwind choppy water: 8
highwind chaos water: 7
big sails: 8
small sails: 7

My hypersonic was more allround and isonic range is just higher (read better in more wind)

hypersonic use 10-32 knots wind best performance was (for me) 12-22 knots wind
isonic use 12-36 knots wind best performance was (for me) 15-24 knots wind
isonic best performance

Depending on circumstances of use... I would choose

isonic 105 (101)
= more matchrace board
+gusty wind
+choppy
+average windspeed of 18knots

(i)sonic 95 (94)
= more slalom board
+constand wind
+open sea (lang waves)
+flat water
+average windspeed 22knots