Re: RG1570 mod
I have installed a breed bridge at the bridge position and fred at the neck, and left the original single. not a very common combo, but has worked great for me. a bit high output, very versatile for rock, probably would handle blues as well. since installing the breed, my 1570 sounds a bit more 'les paul'ish to my ears. The fred at the neck also sounds surprisingly good, maybe not as bright, but a bit fuller and thicker than a paf pro or air norton.
Also still +1 for the PAF Pro, they can do anything you want them to.