thedoor said..
Awesome! what F4 tail do you have on there?
Foil that day was : mast ax skinny 75, manta 635 front wing, stab on photo 170 L older race design with winglets, that s most stable, longest fuselage at 72 cm, after 2 runs I switched to 150 M(69 cm fuselage)mid/low aspect, made my jibes a lot tighter. Once I dial in I should be able to use 137 S surf(66 fuselage), but conditions have to be good,etc