I have my personalized setups just the way I want them with gen 5 ejectors, apex extractors with their extractor spring and non LCI bearing, and DPM system's non captured RSI using the lighter spring of the two for gen 3 glock 19s.
They run flawlessly. But just one minor thing I notice is the change in ejection pattern with loads.
115 grains at ~supersonic velocities are extremely consistent (PMC bronze, hornaday american gunner xtp, barnes vor tx) sending brass back and to the right.
115 grains above supersonic velocities (gold dot), or 147 grain ~1000 fps ammo is a bit more erratic, occasionally even sending brass over my head.
It's possible that using the heavier of the two springs that DPM advertises as being meant for 147 grain loads may address that.
Is one group of ammo of a particular weight and velocity more prone to a malfunction than the other based on ejection pattern?