I haveshot a W/B for about 4 years now and I would not consider another rest.
My goal for buying the W/B orginally was to eliminate any chance that the aarow would fall off while stalking or drawing. The W/B did exactly that. I had problems with it tearing up my fletchings last year for the first time since owning it. The problem was a tuning problem and cheap fletchings.
I would not consider a fall away rest simply because of too many moving parts that "could" fail. I will not use expandable Broadheads becasue of this too. I am just consertative or basic when it comes to my set up........... I think less is better.