I been training with a single ply super katana (stock sized) for few weeks now. Last session I was able to bring down 465 to a half board fairly easy. It took a small amount of time but I'm confident touching 475-480 and have the strength to lock it out. What kind of changes in the shirt can I expect if I were to go grid stitching? Would it give more pop off the chest? I can dance around with the bar bringing it down as I've done that many times if need to. I'm about 213-215lb and maintaining weight well. My goal is 500lb bench with a single ply.