I replaced all of the Kimber followers in my mags with Wilson followers. Seems to work better, no chance of gouging, but I do get an occassional FTRTB when feeding the first round when changing clips. I am thinking that the 7 round spring is too compressed. Does not seem to happen when loading 6 rounds. I also have 1 mag with the taller 6 round follower in it and it will not do the same thing.
I replace the springs and followers in my UC and Custom Target mags with Shooting Star conversions (7 and 8 round respectively). They work perfectly with the increased capacity. The mags have many hundreds of trouble-free operation.