I have been testing on iSonic 122 (2008) with fins and sails. I really enjoyed the Sonntag SL-P 44-48, this one is still in prototype stadium. Should be on the market later this year.
At this moment I can advice the Select S10, yesterday used the S10 39cm underneath the Falcon 112 in minimal conditions, went super and is capable to do good speed in waves. For open water it simply worked good. Crosswind speed was between 45 and 50km/h for a real long distance