Losto choices out there...the simpler the better IMO.

I'm using a Trophy Taker Shakey right now on my Liberty that is a super solid piece of equipment. I've also got one of our own "Walks With a Gimp"s (Russ W.) "plainsman" drop-aways on my ExVFT and it too is solid and simple, and works quite well.

The NAP 4000 is a nice rest (easy to adjust) as is the Cavalier Avalanche Extreme

No experience w. the MZE, but folks seem to like them.

Seems to me like the TT is the "standard" by which all others are judged, and the MZE has a very large loyal following.