Abusing 12's in ways most people never think of is great fun - I especially like pushing a 12 into a distorted amp of the chimey variety - they really ring, and it's awesome fun. Get that 2nd harmonic pushing on top of unisons and octaves.... if I were home I'd pull out my 12 string strat now. I need to remember to bring my 12 next time I take my amp where I can really push it.
But i don't think that a working floyd would be very rewarding. I find playing 12's is always a balance between stringing light enough that you can play it, and heavy enough you don't get accidental bends when you look at it crosseyed. The whole jangle/shimmer thing quickly falls into a pile of awful crud whenever the tiniest bit of pitch bend is introduced.
Since I forgot to actually say it last time, and not just comment - way cool guitar. :headbang1: :headbang1: