Dude, not trying to sound mad or anything, but have you read anything in this thread? Yes, on paper, a RGS is a good starter snake, but various people (including myself) have established that they're always WC and heavily laden with parasites, and as a result rarely accept food in captivity. I don't know what kind of experience you've had with the species, but if it was a good one, then it also was a rare exception.
Personally, I've never heard of one musking, but I suppose its definitely possible.