My TRP Operator just arrived back from a trip to John Harrison's shop. The bulk of the work completed was done to correct poor work done by another smith or fix deficiencies from the factory.
Here's a few pics of the gun (not the greatest I know)
My TRP came from the factory with an unbeveled mag well and the "Springfield" mag funnel. I had the frame beveled and a used S&A magwell (w/ arched MSH) installed.
I also had the front of the magwell beveled to remove the "teeth" that seem to constantly bite me during reloads.*
And yes; I actually use my TRP
Work included:
Trigger job
Fixing damaged sear
Fixing over travel screw on trigger
Replacing 10-8 mag release w/ Harrison extended version
Replaced firing pin stop
Pinned extractor
Reliability package
.....and probably some other stuff I'm forgetting