I just put a RY in my Jackson Kevin Bond Signature Rhoads yesterday and it slays so far. Definitely more life and tons more versatility than my previous EMG 85x. I didn't even realize how much of a brick wall the 85x was in certain situations (and I have a C-Bomb for those purposes currently). I'll be writing a long review of the RY once I've played on it for a while. I also made sure to record some sound clips of the 85x before removing it and I'll be recording some RY clips over the weekend for a proper comparison.
Initial RY review in this guitar: excellent articulation and sounds amazing at lots of different levels of gain. It can be sweet for clean/light breakup rhythms and soft sections but can also completely rip if you need it to (haven't tried to go super heavy yet, but Prong, early Metallica, Stooges, PUP, etc. sound perfect to my ears). In this Jackson (all mahogany) it tames some of the low-mid energy, adds more upper mid-punch, brings out a nice sweetness in the highs and maintains tight (but definitely not weak) lows.