I always advocate tuning. Some guys take it a little too far, but the first thing you wanna do is paper tune your bow, so you know the arrows are coming out straight. Once you get that done, sighting it in with field points is a cinch. I have an uncle who is a die hard bowhunter, but he never goes to the pro shop, because they charge too much in his opinion. He went out with a used bow he bought from someone else last season and wounded/lost two deer. He finally broke down and took it to the shop - come to find out the rest was way off to the left and the sights had been adjusted to compensate. You can paper tune yourself or take it to a proshop if you want. Either way, the results are well worth the effort. Also, don't forget to broadhead tune as well - especially if you use fixed broadheads. Those are two easy to do things that'll help make sure you're on target this fall, rather than scratching your head while the deer runs off at full speed!