Morning, Gents.
I know when Michigan came out with the MMC, I didn't apply for two years, as I have a CPL and didn't want to lose it. Read an article in the Flint Urinal where a guy had lost his permit for six months over a DUI, and when he went before the board to be reinstated, one of the secretaries mentioned to the board that the man had a MMC. The board said "so what?", and returned the guys permit.
To be honest, I haven't bought a new gun since I got the medical card, though. If you knew how many guns I've got, you'd understand.