OK - here we go. it is butter now.
I suspected I put the backstrap retaining pin in for the trigger pin - ouch - and I was right.
I disassembled and this time, POLISHED the roller. THIS IS EASY. Take a thin brass punch and place the roller on the punch. Block one end with your finger. Take a felt wheel with a tad of Flitz on it and polish the snot out of it. (My roller is .214). The roller will come out gleaming and smooth with no imperfections.
I had a CGW SRT kit on hand, so I put the parts in to see what that would be like.
My DA is amazing - glass like over butter and even. WOW. Reset is a tad shorter and there is a bit less camming - this is an effect of the SR Kit. Now it is sweet.
Thank You Brian2ad for letting us know the cause of much of your trigger issue in your OP, was a pin you installed wrong. Appreciate your honesty.
This is why I agree with others that before changing ANYTHING I prefer to shoot/dry fire at least a thousand rounds, which IMO is just initial break-in on CZ's that can go 10's of thousands of rounds. For DEFENSIVE guns, unless there's known issues, I prefer to just keep the internals stock; giving the factory the benefit of the doubt that they know a whole lot more than I do, and they've
prioritized long-term reliability. It's surprising how most issues seem to just smooth out.
If for some reason they don't, I haven't made changes that would effect my Warranty.
BTW, I recently had a SIG that the trigger wouldn't reset whatsoever right out of the box. Dead on arrival! They couldn't have even test fired this gun. Sure, they took care of it promptly, but the assertion that SIG doesn't have issues like every factory, especially on new models; is simply false or wishful thinking.
I'm glad that we can discuss and share SOLUTIONS on this Forum, and not just complaints.
Thanks, Vinny