The Firecracker par excellence for strong and experienced throwers. This is due to the greater material thickness than the windcheater AT: 5 mm instead of 4 mm with a extremely concave profile. But also to the rear and to the front edges. The bottom side one can almost be called biconvex. Very strong washouts on the trailing edges down on both wings, which are also formed concave, like the Bevel to arm 2 take care of this incredibly vast, wind stable and smooth precise ride, safe catchable return.