I've learned how to do my own setup, tuning, etc... and I'm glad I did. I don't have a lot of time either, but when you are out by yourself, something goes wrong, and you are no where near a bow shop, it comes in handy to be able to change sights, rests, get your center shot, paper tune, etc...

Also, you might want to invest $15 for a scale to check your draw weight. When I got my new bow earlier this year, I couldn't figure out why I couldn't get it tuned. I backed it down a couple of turns of my bolts. For some reason it worked. I increased my tension bolts by 1/2 turn and shot again. It was Ok. Put it on the bow scale and it was maxed out! Lesson: if you buy a bow from one of the catalog stores, check the poundage before you draw an arrow through it.