I like your analysis of the trigger.
I got one a few weeks ago and it shoots great, even better after touching up the crown, and it's not pellet picky. With a red dot sight on top, it consistently drills the 1/2" spinners at 12 yards and the spoon spinners at 25 yards.
I was getting 48 shots inside of 8% on a cartridge, and yesterday I dropped in a couple of 50 durometer silicone O-rings between the hammer and valve and it went up to 84 shots without hardly any tradeoff in velocity. Much quieter now as well, of course. Details herehttp://www.gatewaytoairguns.org/GTA/index.php?topic=124266.0
Also, the O-ring sizes are listed there.