Yes, Feb. '09. It's a 3 ply mahogany interior shell. In the "old" days, it was common for drummers to repair calf heads with a rip or hole. If you like the sound, go for it.

I have a set that has calf heads, and a friend told me that, if I like the sound of them with the calf (which I really do), I shouldn't take them off, as the calf contours to the shell. Makes sense, as I once had a drum with a calf head...took it off, and when I put it back, it never sounded good.

All you have to do is damp the head before putting it back on,not too much just untill it get floopy and loose,try on to get the flesh hoop too wet,put the head on the drum with the counter hoop and tension up till you get a small collar over the drum and let to dry after a day or so tension up and the head will be moulded to the bearing edges.The head should then sound fine.If in a hurry you can put it on dry but as has been said it will not sound as good and will not last as long. Dion