So I bought a star pd and am waiting on new 16 pond recoil spring and a new recoil buffer. The buffer came from gun garage and over all I am satisfied with its quality appearance. What worries me is the hardness of this item. When compared to Wilson buffers which do have flex and are firm yet not hard if that makes sense. The star pd seem to just hard molded plastic. Does anyone have experience with these parts or star pd buffers. Should I just modify Wilson buffers to fit?