I shot the 2" Blazers all last year,and I thought they worked well.Having said that,I went back to 4" Duravanes with a hard right hand helical.The difference was just short of amazing,my groups tighten up,arrow flight is much flatter.This was very noticable on shots of 30yds. or more.
Basically,I believe it has to do with the helical on the 4" Duravanes that I could'nt get on the Blazers....Bob