Ejection issues solved ! Have been experimenting with different parts and now have a setup that ejects all brass up and over my thumb into a consistent pile at about 3:30-4:00. First thing I tried was the white sound defense extractor plunger and spring. No success. Ejection was just as inconsistent and anaemic as stock, some brass hitting thumb, some ejecting straight up and landing back on top of the gun. Had 3-4 inline stovepipes in a 200 round range session. Next up was the apex failure resistant extractor. This part solved 99% of the problem. Super consistent ejection pattern. Lastly I removed the "large" non beavertail backstrap and installed the magloc beavertail with thumbrests. This did a few things. The thumb rests, combined with how it wraps up and around the sides a bit, pushes my thumb out away from the slide a few mm. Hand sits just as high as before for good recoil control, but gives a little more clearance at the ejection port. The added girth and trigger reach positions the trigger nicely in the center of the pad. Perfect straight to the rear trigger presses seem to come more naturally now. One range practice session and a three gun match so far with this setup and zero issues. Hooray !