Porter,
theres a lot of good info from the guys on here. My suggestion is to do a couple of things. First if your string & cables are more than 2 years old, I'd get them replaced. Otherwise I'd go through the steps to tune your bow. You may or may not want to paper tune your bow. I've seen guys paper tuning and the tear can be different for 2 guys shooting the same exact bow because of grip, anchor point etc... can change the arrow flight, so it may show you some things, but not everything. My suggestion would be a thorough walkback tuning and then broadhead tuning. This will get your centershot on target for the field points then you can adjust accordingly for the broadheads. I'm actually going to be doing this for my bow this weekend. I noticed a little wobble in my arrow, nothing major, I was still hitting my spots out to 80 yds but any little thing bothers me so I had my bow guy take a look. He made some very minor adjustments (as little as 1/32) that corrected the problem but it threw my arrows to the right about 2 inches. I made the sight adjustments but now my broadheads are shooting a little low left So I'll be walkback tuning and then broadhead tuning the bow to get it back to spec. I shoot about 200-400 shots/ week through my bow year round so it was bound to need a little tweaking before long. Hope this helps.
Ed