Thanks for responding! I’ve actually tried to even out the slide rails, with jewelry files. I’ve had to bend multiple parts, within, just to get the slide to get past the backplate. I’d love to get these tuned right. They feel incredible in my handsI have bought several Daggers with no issues so far.
You mentioned your purchases were to replace Polymer 80's, well that's exactly how I treated them, as a complete parts kit.
They were disassembled, polished the original PSA internals, rails, feed ramp and then put them back together. The difference between the "tuned up" one and the out of the box one is night and day.
No issues so far. Just my .02 cents