Big thanks to ILLusion for his coaching over PM early on. Mad Max you're a genius— why are you wasting your time doing anything but designing guns for your own Canadian airsoft company? Oh wait... replicas, dang laws
So, after taking the gun apart and realizing the inners were all in top shape, I concluded she wasn't assembled properly, and just resetting the leaf spring wasn't enough, as the sear wasn't in the proper position all along. I set the sear so it catches the hammer for both clicks and now she's firing.
I was a little worried about opening up this gun because of past experiences with nightmare glock hammer block designs, but the TM couldn't be simpler or easier to take down and reassemble. Had a little snag with the hop-up (this gun has a hop

) being set too far so the bbs were trickling out (small scare)..lol, turned it off and blamo.
For anyone who has a TM Hi-Capa I'd recommend saving this thread as a web archive to your HD for future reference, these tips are pure gold!
Cheers, Steve