Well, the new spring did not solve the issue with the mags. Interestingly, shots fired from those mags had very erratic ejection in where the casings were thrown.
No problem with the other mags.
Kimber Super Carry Pro with the new grips.
I was pleased with the accuracy at 10yds. Was shooting as quickly as I acquired the target (blank paper).
I did notice I am consistently pulling the first shot low. Don't know what that is about unless I am noticing on the next target acquisition and bearing down.
Over all very pleased with the pistol. Talked to the seller, gunsmith and Kimber dealer, he is going to slick it up for me. I'll also have him check the ejector.