i have been using the bald eagle fully floating reamer holder with ok results. i still don't like the idea though. i want to get away from holding the handle by hand. my tailstock is about .0015" high now but i think i have a way to fix that. i am thinking that something like the gtr reamer holder may be the way to go as long as i can get my tailstock aligned dead nuts. i am also thinking about putting together a coolant through bore set up and a hands free reamer holder would be a good idea with this. i'd like to get thoughts from some of you guys that do a lot of chambers or have tried different reamer holders.