yeah....im 5'5" and im riding a 176 centre mounted...centre mount takes alot of length off. Also, you wont want to ski powder on a centre mounted ski. For powder, you need loft in your tips, se being mounted back is good. However, munting centre in powder is (ride-able) but it is not advised, and it will be no fun...
I'm just trying to sound like I know what I'm talking about..
"If you do a lot of rails, T.Hall's are better cause it has special jib edges." -FrOsTy29*