Bummer on not having a 24# spring option. I only use Wolf.
Is your extractor tuned? Meaning How does it eject 45ACP and 45ACP +P's? Did the stronger striker spring work.
On the 1911's,you can use a square bottom firing pin stop and stronger mainspring. It really does work in slowing the slide down and keeping the round in battery longer. VERY IMPORTANT!
Right now, if I were you I would keep the loads moderate in the XDm.
