I recently rediscovered a parts Strat I had at the back of my cupboard - Warmoth hollow ash boady, Fender HR '57 neck, Kinman pickups - and snapped the vibrato arm off in the block! So I thought what the hell and ordered a bunch of stuff from Callaham for this guitar. So it now has a Callaham vintage Strat bridge with his shorter "64" arm, a parchment single ply scratchplate and backplate, and a few other little bits and pieces. I am quite surprised at how much better the guitar sounds now. I had a Fender USA vintage bridge on before and it's pretty much the same thing as a Callaham. But it's wierd - the guitar does indeed feel more tactile now. The action is the same as before, although I am using an extra spring in the back - could that make a difference? The guitar sounds livelier now and feels amazing - really responsive. BIG sounds for sure. My favourite thing is the shorter arm. It's much better - subtle to begin with but just sits where it should. It's more like using the Bigsby on my 6120 now, which is a good thing. It makes me wonder why we didn't do this before! It's great! Has anyone else had a similar experience?