There are 2 separate parts to a polarizer, ( I assume you mean grabbing the actual lens when you refer to the "barrel") Try grabbing one part lower on the filter itself.
I do it mainly, because, much like casting a flyrod, I enjoy it. Do I save money by doing either one? The answer to that is a resounding "not likely", but I stick with it regardless, even though my skills at both leave alot to be desired.
Whatever you buy take it to a good tech and get it set up. Intonation, action, etc. If it's an acoustic stick some Elixir strings (or something similar)
There was a guy named Peter at Guitarworks on 16th Ave that was really good, not sure if he's still there or not.