RE: 2 cam or not 2 cam?
tabby, I recommend you buy whatever you' re comfortable with and shoots good for you. All the fluff and hype aside, when you' re talking tuning and maintenance between a single, dual or hybrid, they all need periodic adjustments.
In my experience, I have a good deal less problem keeping a dual in tune than I did with any of the singles I' ve had. My duals have all given me some advance warning that they were needing attention. My accuracy would start sliding, a little at a time. With singles, the bow would be shooting great and then, all of a sudden, it wouldn' t put two arrows in the same part of the target. I' d hate for a single to decide it was time for a tune up with a big buck in front of me.
It will behoove you to learn to at least learn the basics of tuning and buy a portable press like the Bowmaster. Aside from a few outstanding shops that will make you shoot the bow between adjustments, all you get with a shop tune is a generic tune that doesn' t take your shooting form into account at all. You have to either adapt to the bow or know how to tweak that tune to fit you.