Hi, When benching, the past few months I've been using a not so wide grip - with my middle fingers on the smooth line of the bar. Today I decided to go a bit wider, not having done this a long time, and I had my thumbs on the outside of the smooth lines. In addition to that, I let the bar touch my chest before pushing back up. Normally I'd stop a couple of inches above the chest. Now I feel a discomfort/mild pain in my shoulders at the base of the neck. Did I overdo it? Should I switch back to my regular grip and not go so low or is it because I've engaged muscles to a greater degree? Thanks.