Re: RG770 Pick ups
I've used original IBZUSA pickups in the neck and they're pretty good there. The Maxxas has them in both positions. I find the F2 to be the most like the original IBZUSA's. Besides being F spaced, they seem a little brighter and hotter than the original IBZUSA's. The F4 was described as a PAF Pro with a little more lows. My guess is that if you're happy with the F2 neck sound, don't change it. Just get a bridge pickup that competes with it better, like a Tone Zone, Evolution, or Super Distortion. That way the whole guitar will balance better. For now, check your pickup heights. Perhaps lowering the neck pickup and raising the bridge will get you half way there. You can lower the neck pickup quite a bit, and still get a good sound, because the F2 is pretty high output. The bridge pickup can be almost touching the strings when you fret the 24th fret.
I'm the wrong guy to ask what I'd do if it were mine, because I'm always changing mine. But the Breed or PAF Pro to me are kings in an RG neck position. Then I like the Super Distortion, Breed, Evo, Norton, Fred, heck I like everything in the bridge position! A good mod for the C2 is to run it as a single coil. You can do a search and figure out how to rewire it that way if you don't know.