How to barbecue marinated chicken drumsticks

Question

I'm looking for some general advice on how to do this. I've attempted this twice and they turned out OK, but the outside layer looked a little black. Everyone really liked how it turned out but I'm wondering how I can improve. This is my process:

1. Skin the drumsticks.
2. Marinate them for 20-30 minutes (we bought a bag with the flavor in it that was for this purpose).
3. Put the chicken on the barbecue on medium to low heat.
4. Flip/rotate the chicken every 5 minutes or so for a total of 25 minutes.

Answer

Alton Brown has an interesting technique in an episode of Good Eats in quite a bit of detail.

But, what I just do is to put it on direct heat (right over a medium-high flame) to sear the skin side and then move to indirect heat (burner right below turned off, other burner still on) and cover to complete. I will admit I've burned it a couple times, but every time I do, it's cause I've forgotten to check it, and left it without checking it.

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