Just a word of caution regarding wrapping the frame and clamping the bracket. Eventually whatever you used to wrap with, rubber, gasket material, sandpaper, etc. will compress and loosen and allow the tensioner bracket to move. When it moves under power it will rotate into the rear spokes. That can be a real issue if you're at speed so be careful. Check the bracket often for tightness.
Some chain stays are not round but more eiliptical/ oval in shape and will allow a better fit for the clamp on style of bracket. The real problem comes when the frame/chain stay is small and round.
There are numerous pages on this subject. Use the search feature, keyword, 'tensioner' and you'll have plenty of reading and some good suggestions on how to combat this notorious problem.
Tom
