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However, it turned out I was having an odd issue with the LPR. First it wasn't regulating- I was getting full pressure at the LPR,
and a resulting bad leak at the solenoid. I swapped some parts- I have a binful- thinking I had a bad O-ring (close inspection did
reveal some slight tearing) and got it to regulate, but at too high a pressure. That issue I finally solved by taking one of the four Belleville
washer springs out, which struck me as odd. Something wasn't right- the gun was working, finally, but the LPR thing was bugging me.

After letting it stew for a few days while I had other jobs on the docket, I came back and tried again. The problem, as it turned out,
was that I was mixing-and-matching the wrong parts: I'm not sure if those are early-and-late LED parts, or if one's an LED and the
other's a LCD, or what. But I'd had the LPR body of one and the piston of another. Finally mating up the correct pieces got the LPR
working perfectly again. Well, almost.

As I was then testing the gun, I found the LPR couldn't keep up. At anything over about 5 shots per second, the LPR
pressure would fall off (from 90 ish to 60-ish) and the cycling/firing would become erratic- if it fired at all.

Diving back into the reg yet again, I noticed the LPR body I had in it, didn't seem to have a way to let air from the valve
chamber into the LPR body. I think I had an early part that fed air in from a hex-broached hole in the valve side- except
the displaced metal from the broaching operation had partially blocked the passage.

The other LPR bodies I had, all had cross-drilled channels to let air directly into the reg seat area. So I swapped parts one
more time, and finally had it all solved. Okay, almost. Unfortunately the gun still wouldn't cycle well- sometimes not at all.

More digging showed it had to be the 14-way solenoid, and getting into that showed I'd damaged some O-rings on the spool, likely
by cycling it when it was badly overpressured. Thankfully I had a couple of spares in that size, and that, finally, was the last problem.





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