All my 1911's have titanium FP's I try to remember to change springs at the beginning of the competition year and the lighter weight FP seems to help the spring issue.
Another issue to check out, being as this started when you were pushing the envelope, is your mag pouches. It is possible that your mags aren't leaving the pouch cleanly. Could be you are twisting or pushing the mags at a bad angle catching the top round and pushing it forward so that the round is tipped downward. The mag pouches I use are Safariland 077 (I think) but they're 30+ years old and frayed, they need replaced but I just don't shoot single stack in USPSA much anymore. I have had that very thing happen a few times, even to the point of the top round popping out of the magazine! Can't remember a jam due to that, could have been and I chalked it up to something else though.