All good info, thank you for the feedback. I have discovered that with a 6lb trigger spring and lightened plunger spring along with the Ghost Rocket (these are the Ghost Spring Kit springs too) and the stock firing pin spring, the trigger pull is about 5.5lbs when it breaks. Not great, but not bad. All smoother due to the polishing (25-cent trigger job), but ideal would be about 4lb pull.
Has anybody messed with the sear/striker interface? I may do some polishing there as well to see if I can make it bind less. Works great on M&P's, and I figure they took the concept from Glock anyway.