With the Dominion primers, I have experienced the odd light strike in my competition guns (Grand Power X-Calibur, CZ Sp01 Shadow with 13lb main spring), but they worked fine in my other 9mm guns.
I was tuning my S&W 929 and did some testing of the CCI, Federal and Dominion small pistol primers. The Federal tested the lowest trigger pull weight, and the Dominion just slightly the highest.