Replying to Armada pipe cleaner

ok so im thinking of getting the pipe cleaner, im 52 110 pounds and im prob getting a 166 if that is too big PLEASE TELL ME. I want to get the 2010 version because it will be cheeper than the 2011 and correct me if im wrong but i was told that there was no change other than the color. my only concern with  getting the pc's is the base, I'm thumbs up for extra speed but worried about durability. I dont do tons and tons of rails but i want to get better at them this year so im worried that that will damage the base a ton i also want to take it ofer crud every wonce and a wile it would be rare but it will happen and im woried about deep scratches and how deep can a scratch be to the point where wax cant fix it I just want to make sure im not makeing a bad decision. +k for advise