I work in a fire house and have cooked drumsticks several times. I have 2 leg rack holders and cooked them once for 1 hour. They came out very good. The next time I cooked them, it was for only 50 minutes, and came out kind of rubbery, (not cooked through totally). The next time I cooked them, I timed it for 1 hour and 15 minutes. They were magnificent!!! I have since cooked all my subsequent meals of chicken drumsticks for 1 hour and 15 minutes, and I always get the same results, SUPERB!!!! The crew I work with loves them. How I came up with the cook time, I read somewhere the general rule was 1 hour for drumsticks. I've also cooked wings along with the drumsticks and placed them on the bottom of the basket for the same time, 1 hour 15 minutes, and they came out great too, probably because the lower they are in the cooking chamber, the less chance of over cooking them.
On preparing them, I've tried:
a. spraying them with canola oil and adding a dry rub.
b.just a dry rub.
c.nothing at all.
I kinda like the dry rub best, (personal preference), but have no complaints on the other 2 methods, as long as the drumsticks cooked for 1 hour and 15 minutes.