by jorge » Tue Aug 08, 2006 1:56 pm
I second the advice to re-soak the skin before seating it. Recently, I put an old but serviceable cowhide tumbadora skin on a different tumbadora (both Skin on Skin), which had a slightly different rounding to the edge. I did not bother to re-soak the skin as pcastag suggested, and as I have done on other drums in the past. Within a week the skin ripped along the rim edge, where it had conformed to the slightly different shape. I had not tuned it up high, just played it low as a tumbador. In the past, I have had good success with switching skins to different drums by re-soaking and carefully mounting with minimal tension, as if you were mounting a new wet skin. While it is wet, you can very carefully tune it up a quarter turn per lug, to just barely seat it. If it is clear, and starts to turn opaque as you tighten it, you are tightening it too much, back it off a little. A little waterproof grease (I use Phil Wood bicycle grease) between the rim and the skin helps both with seating process and with tuning after the skin is dry. You need to let it dry thoroughly (ie, a week or even more if it is very humid) before tuning it up to playing pitch. You learn this by experience, sometimes expensive experience, so if you know someone near you who has experience mounting skins, ask them to help you the first time you do it.