Hey Toby!
I actually kept the stock TS TRS and on top installed a CZ75 TRS, much more positive reset and increases trigger pull. I did the Tanfo sear spring mod as well.
I messaged CGW about the difference between the 80010 Tactical Sport Hammer vs. 80003 Manual Safety Hammer, they said "The 80003 is narrowed at the top and is designed to produce a 3 and 1/2 pound SA break. The 80010 is full width and produces about a 2 and 1/2 pound break." I am using the 80003 since according to CGW is has a heavier pull.
I might install the stock 20# HS, but I like the lighter hammer feel and impulse so first I will test out my loads on this setup. I might swap back to stock depending on the feel.
I will likely make one more pass at it before Friday range time as I expect a CZUB gold SAO trigger delivered tomorrow, and I will aim for 3# trigger, right now it sits at 2.5# but very crisp break.