Talked to an old friend this morning and he reminded me of a procedure we would do in the Corps if we needed to clean our bolt carrier group in a pinch. We would soak our BCG in automatic transmission fluid for a couple of hours, wipe them off, and shoot after that. It always kept them clean and running for a good 600 rounds before it needed to be cleaned again. I'm gonna try that and see if it helps.
The mag feed doesn't seem to be a problem. I tightened the mag catch an additional turn this morning to get it good and tight. No play now! I'll keep you all posted.