RE: Which drop away rest?
I wouldn't say "avoid them". They work fine for the average guy. But, if you're anything like me and have a healthy dose of OCD when it comes to bow tuning and setup, you'll want sway toward the Limb Driver, Whammy or the new Octane Tripwire.
I'd never make a statement saying "oh if you shoot a Trophy Taker, QAD, or any other standard type drop away, you won't get it to perform well". I've shot one on my Allegiance for 3 years and killed many deer and X's. However, once I read and realized what that pull cord was doing to the holding weight of the bow, I started looking into other rest options.
One thing I failed to mention. If you do shoot a standard rest, you can get the timing and let off correct by taking a twist or two out of the bottom cam. This should restore let off to 80%. (THIS IS FOR BINARY CAM BOWS ONLY). I have not shot a single cam in years and don't really know what the effects are.