Midnight, the reason for that is that the estimate you get is dependent on .......hold it. I thought I had something to contribute here, but you're on auto. It's a mystery because I don't know anything about auto targeting!
I encourage you to miss 50% of your shots manual targeting, though. It's a LOT more fun! Be sure to check out WernerSobe's instructional videos and I have a seminar on the Dick O'Kane targeting technique on page 4 of his thread that will really help you if you get into the SH4UBM add-on! Manual targeting isn't as hard as it first appears. Go for it.
