As a new keeper I purchased a couple of hives "NEW" that the inner cover
doesn't have one side deeper than the other.  My question is, is it
nesaccary to have one side of a inner deeper than the other?   My a second
question is, I have seen inner covers with notches on one end of the cover
and also two notches one on each end.  What is the purpose of those notches?
The inner I recieved from the seller didn't have any notches... HOW are the
bees suppose to exit out if there are no notches?  Am I suppose put the
notches there or what?