I use a 8.8 without any problems on my IS122, but I need at least 13-15 knots.
I've also tried my old 9.5 without problems.
If you have to struggle and shlog in too low wind, these kind of sails become rather heavy for the board.
My IS122/2008 has ONLY 114L of volume.
If I remember well, the IS121/2010 has 117L of volume.
IS87 / IS101 / IS122 / US147
Last edited by BelSkorpio; 15th September 2011 at 05:18 PM.