I se the cz custome guts and have zero issues. But then again I have the cz custome base pads. I'm sure they'd work in the Taylor one as long as there's no lip to catch on.
I emailed them and they confirmed it i signed up to their mailing list. I currently have a CZ TSO and i love it but my 320 just feels better in my hand and points more natural so i want to give it a go!
I'm roughly 7k rounds into mine and no issues. Did bent the ejector tab once though user error. Don't slam a mag in with aftermarket bad pads and slide locked open!
The feel is different as well, the wider trigger face and striped textured line help me line up my trigger finger better. The grey guns trigger and over travel bar were good, I just feel with the AC trigger it can be fine tuned that much more.
I have the czc base pads and springs and I can load 21 but its to tight and I'd rather have the reliability and ease of reload. I usually also have a fourth mag I use for solely plus one on the make ready.
Is it with a mag loaded to max capacity? Try taking one round out of the mag and see if that will solve it. Some times there is to much tension when you shove that absolute last round in the mag and the recoil spring may not have the power to overcome that friction entirely.
I had this issue before when the gun was fairly new. Usually a push on the slide or rack of the slide and that was it. I'm roughly 5 k rounds now and it hasn't happened for a long time I chalked it up to some break in.