My Kimber Gold Match ran very well for the 100 rounds (yes only 2 zeros
) I put through it before it became a 10mm. I still have the .40 barrel but there just doesn't seem to be any reason to downgrade.
The biggest trick for both .40 and 10 is good magazines. This is true of any pistol design but seems to be even more of a factor with this design in the caliber under discussion. And even more of a problem as it is not as popular a chambering for 1911 though it does seem to be growing.