Question about banjolele head replacement (with pics!)

Always feet! sand it by duct taping a sheet of fine grit sandpaper to a counter or floor - has to be stable and taut. Then, put even pressure down on the bridge and move it in a circular fashion. That way, you'll get flat feet that are evenly sanded down, makes the bridge stable and sound better.

Good luck!

One last question (until I think of another!)
I basically just tightened the head down until it was hard as a board with a tiny bit of give under thumb pressure. I've read that you can 'tune' the head. How does one do this and should I do it on my banjo uke?

OK, back before I thought I screwed up the banjo head placement, I bought a second head. I can get the current head with the tension ring down pretty tight, so it clears the neck, but there is still a 1/4" rise above the vellum. Now, it appears to play fine, but I've got this second goat skin head - should I replace the head I have on there now and try a new one (more just for fun the anything else)?