As the old saying Goes if you cant dazzle them with Brillance, baffle them with BS, the trigger bar answer seems to be BS for a Feeding issue, IMHO. I would clean and open the Ramp up and be done with it, then a good polish , come on Man !!! learn to fix you're own guns!!! Be your own Gunsmith!!!Did you ever get any explanation as to how the trigger bar might cause jams? The only thing close that I've found so far is a Youtube explaining a known problem with G3s misaligned trigger bar causing slides to rub and stick. They did not mention FTF being a result of this though.