Just picked up a P10c and was looking at CGW parts for it. Are they worth it? Or can I clean up the minor issues myself?
ETA: whats the reasoning behind the t-block, and pivot pin?
Depending on your expectations, yes, they are worth it.
The tool steel striker replaces the MIM stock striker which has been reported to break for some.
I found the CGW trigger much more comfortable to shoot than the stock one, and when paired with the reduced power reset spring, the trigger pull felt crisper with a smoother reset.
When I upgraded mine I also installed the steel frame pins and the t-block + spring just because the parts were inexpensive. The mag pin was not yet available or I definitely would have installed that as well to address some of the extra resistance one feels with the mag release. Next time...
From a reliability standpoint, the striker is the only part I would consider a "must upgrade" but the other parts are nice to have, especially the trigger. I really did not care for the stock trigger.