So I decided on last years Thalls (08-09) for a ski, but I was wondering whether I should get 166 or 171. I'm somewhere between 5 6 and 5 7, and i weight a little less than 130. I pretty much only ski rails and jib, or at least I did last season, and I barely ever hit jumps over 40. Although I might try to learn a little bit on jumps this season, I kinda perfer short skis cause theyre easier to do tech on rails with and don't get in the way as much. Normally I would probably choose 171, but I'm not sure... I also want to be able to butter around and such, and I had major trouble buttering 171 ar6s (which are barely over my head).