We have 55 tapes in our rotation.  We normally use 2-3 per day, and they
rotate off site the day after they're used.  Every morning 4-5 tapes come
in the door to be over written.  Amanda always makes sure there's at least
one level 0 for each server in the current set, but we normally have two.
So yes, it works well.  Plan a rotation for yourself that makes sense, then
stick to it religiously, including testing your restores.

Is that what you're looking for?

LP