I went with the HBi trigger shoe so don’t have any comparison with the CGW shoe.
I did change out the stock striker for the CGW one, not because I had any issues with the OEM but more for peace of mind. I did install the striker anti-rotation pin and plate, again as a peace of mind thing.
As far as the T-block, I’ve been using the original. The OEM is plastic, so possible that it could wear or even break over time. Upgrading it to metal would resolve that. But I haven’t done it, and probably won’t unless I loose or break it. It’s just there to hold the crossbar that you depress for take down.
I think the mag pivot pin helps resolve problems with the ambi mag release that was in the earlier gen P10. I tried polishing mine, shot it a lot, but eventually just replaced it with one from Apex.
Good luck with you P10S!