#1
I've heard of these first on the Yngwie Malmsteen Sig. Stratocaster.

What is a syncronized tremolo and what is different about it?
If ur ears aint ringin...ur doin it wrong

#3
probably about $700.
Guitars
Gibson ES-137
Epiphone Casino (w/Bigsby)
Rickenbacker 620
Epiphone Dot