if you want to save a few bucks, you could also just use cast as a measure of performance. I think Badger said something like if you shoot a 10 grains per pound arrow drawn 28"... 170 yards is very good, 180 yards is worthy of braggin', 190 yards is exceptional, and anything over 200 yards is world class. I may have missed it some, but I think that's close. 
I have a couple of good chronographs but I'd much rather shoot for the 200 yard away fence. It also gives you a feel for proper tiller... just have fun.
are those numbers accurate? I was about to post asking for some relation number between distance/performance with a 10 grain per pound of draw arrow...
