I got two questions for u: professianal riders

1. I'm looking for some new bindings apart from F2 in Europe that work in step-in version. Is that possible to get some. SnowPro F.A.S.T looked nice... are they still in production?
2. I'm a kind of hefty men, so my weight is quite high, however, I prefer riding alpinecarving to racing. The alpinecarving boards are shorter and what entails less stiffness. My weight then will make them flex too much. I should have some more stiffer and shorter board, how to make this two parameters work together?