I had the 15qm Sonic4 out for a few sessions on snow and gusty, turbulent lake foiling. No TT anymore. 90kg ,800qcm medium fast foil.18.5 & 20.5 m lines. 58cm bar. I had /have the FS Pulse, Psycho3&4, Speed3&4,Sonic2,Soul 10qm,Sonic3 11qm. I tested the 13qm Kauper Falcon, Hyperlink V3 13qm, Chrono V...