I did not know that 10 mm would work in a 9mm/38 super/ slide. I thought 10mm were switched with 45acp slides also 40 S&W will switch on 45 slides.
Sounds like a nice pistol though. Congrats !
Seems to be a Kimber thing. According to the expert and previous owner.
He says, just change the barrel and recoil spring included with each barrel.