Hey everyone, I just switched my st300 and surge plier heads. I broke the standoffs like I've read, and everything is just dandy. However, the new plier head seems to hit the inside opening tools, preventing the tool from closing completely. It works fine, maybe just a millimeter or 2 of gap due to the inside tools. Is this normal, did I do something wrong, or was the shape of the plier head changed recently (my st300 has date codes of 10/12 and 11/12)?