I'm not much of a trem guy; however, that's mostly due to the ridiculous tuning issues, incredible amounts of maintenance required, and general unfriendliness putting me off actually playing the things.
The R-Trem is stiff enough to barely detune on unison bends when unlocked (and can be locked!), can be easily adjusted for spring tension with convenient wheel, and with double-ball strings you can practically tear the bridge off while stepping into a blizzard and it'll return to pitch... all sensibilities that appeal to my hardtail-loving instincts. Sure it takes a metric ton of force to move, but that's kind of the point for me... I can dive and warble and whatnot without losing tuning stability, then turn around and double-stop bend and stay in tune without fiddling with buttons or levers.
Despite my general belief in the superiority of hardtails for most guitar work, I received a Fernandes Sustainer for Christmas, and I think getting the most out of it would involve putting it in a heavy-duty trem-equipped guitar with a killswitch and a decent bridge pickup for sheer noise-nik awesomeness..
I'd stick it in place of the (currently nonfunctional) neck pickup in my Spirit in an instant, except it's one of the "broom handle" ones and there's not enough room in those for a 9v battery, much less a circuit board with two hard-mounted integral toggle switches. I'm loath to disassemble such a unique (and frankly wonderful-sounding) guitar for the project as I've played many Spirits that weren't nearly as good as this one and I don't want to lose it.
However, it looks like I may have to gamble on an eBay Spirit and loot it for parts. Thanks for your help guys!