Juggernauts are very tight and quite high output. What I like about them is how multi - purpose they are. They excel at cleans, rhythm, and lead playing with the pickups never becoming shrill when playing higher up the fretboard. (yes, BOTH pickups do great clean tones)
They have plenty of bite but I would say the high end is sweet and it purrs. The neck pickup does do liquidy solos and the bridge pickup is thick and violin like for solos while being crunchy, tight, and aggressive for rhythm. I'm going to guess your RG is a less phat sounding guitar than my Redline III so I'll bet that it won't get quite as huge sounding, which seems to be what you want.
The only question for me is whether or not you'll get along with the voicing of the pickups. It's really modern with more of an emphasis on the low mids, even if there is a lot of mids in general. It's really hard to know how it will compare to what you have already, but if you use a 550k volume pot directly to the output on the guitar, you should get plenty of bite and treble!
