A agree with the original 3, and would add

The size of the rack should not influence whether you take a shot or not
Passing a shot is OK. I CAN'T STAND people who start out by saying "I made a bad shot, but it was the only one I had"[:@]
And to bawanajims.....if you hang a stand and hardly hunt it, don't expect it to "reserve" your spot for all time.