Perform problem:  Around the third spherical I get a light-weight hammer strike.  I have tried using both of those H2 and H3 buffer weights.  H2 I used to be only acquiring a single shot, H3 I now get two shots off.  I've experimented with this on two uppers, a single carbine and 1 pistol, but utilizing the similar BCG.  I requested an aimsurp