Your Gretsch LOOKS amazing. I love how Gretsch does white. Now I want a Falcon, dang... I'm still using the stock rocking bar bridge on mine. Everyone says Compton or Tru Arc, but so far I don't see the need. I guess I'm missing out... Speaking of bone nut, I've just been considering whether I want to try and replace my zero fret with a regular nut. Possible, but I'll need to cut the ebony board perfectly, at just the right distance from the first fret. The problem I'm having is that fret wire (even stainless) wears much faster than bone, and even a tiny bit of wear creates burrs that buzz the strings. The good part, of course, is that the guitar smoothly returns to pitch with normal Bigsby use.