Speedpro H405 pistons, what to expect for performance?

I have used several KB pistons sets(although some years ago) without issue. I recently freshened a 360 for a customer and 1 Speed Pro hyper piston had very slight damage to the top from injesting a small object. After receiving 3 I could not get 1 that did not have out of round pin bores. I'd be very careful with these as they appear to be made by 4yr old girls with very worn out equipment.Yep, I put the damaged piston back in and ran it as I didn't have months to keep trying my luck with those! YRMV