Actually i do.You said somewhere that you are shooting 3" groups at 60 yards or something like that.You obviously can shoot and have good form to achieve this,BUTi would think that in order to fully recognize any gain or loss in accuracy at long range while making these "very small movements" you would have to be using a Hooter Shooter.I can't imagine that you could duplicate the consistancy that a machine can.In terms i know you understand,just like when shooting for accuracy with a rifle there is no way you could hold the rifle steady enough to determine very much,which is why you use a bench.Same concept