Just a quick session at the end of the day. Started with 6.6 and 61cm wide, but not enough push for real results. So quickly changed to 7.5 and 68cm, well, a whole lot better. love the Manta, it rocks. And a top ten session, not bad ! Tried to do a mile as while, and alpha's, and hour, but wind was very gusty, so those parts did not have the wanted result....