They look good. Is that a roller? If it is I wonder if you could get it to make the same sound that Rambo's bow made when he pulled those explosive tip arrows. It also doesn't look like it needs to touch the shefl, a good thing.

A roller could be the next thing in rests. People always speculate about how bows could get faster. A preloaded rest that would turbo charge the launch could do it. Those magnet rest could do it. You know how magnets push each other away.[8D]Turbo charge launchers, you heard it here first.