The A01 slide that I bought second hand striped screws when I tried to mount the optic to the plate. Sent it to CZC and they fixed it. I have ran a couple hundred rounds on 2 recent visits and it stays on and accurate - shoots like a dream again. I was able to hit pieces of left over clays on the 50yd berm when benched and bagged.
Just wanted to give thanks and props to CZC for repair in reasonable price and time returned.