I'm 225 lbs, size 12. I am thinking 167 or 172?I want to use this board fro hardpacked and for big powder dumps.Lib makes the board in banna version for 167 but no banna version for 172.My concern is that for powder I want to go bigger but then I can'tget the bannana tech version. Should I go longer for powder without the bannana tech (172) or go shorter (167) with the banna tech? My sense is the bannana tech rocks in the powder and I shouldn't go longer for the sake of longer and miss out on the advantages of the banana tech. Correct?