What are some good types of drop away rests?

What type of problems do you have with the drop away rest you use?

I've personally used the trap door and the muzzy zero effect. Both are good but I prefer the zero effect. I shot good with both but the trap door is smaller and has more room for error in the arrow dropping off. The zero effect can be drawn back at different angles and I like it a lot more. It is a bit harder to set up and tweek, but once you do, i'm sure you'll like it.

Brother, i just sighted in my bow yesterday......and i use a trap door drop away as well, and within two shots my bow was sighted in, i know that doesnt have anything to do with the rest, but man...........i was impressed with this rest, i couldnt even see my arrow when i shot.