New pu's for my RG
I'm a huge Malmsteen disciple and have written some neoclassical instrumental stuff myself. I don't particularly like the tone and feel of Strats. *However, on the few recordings I've done I've recorded with a Strat b/c it was either that or a maple bodied ESP g.lynch which is way too bright and crunchy for a smooth instrumental. *
Tony Macalpine used all kinds of humbuckers back in the day. *if you've ever read the Yngwie interview where he was in a room listening to players and commenting...he thought that one of Tony's songs was something that he had recorded earlier and forgot about. * Also, Timo Tollki of Stratavarius uses emg pickups and often his sound reminds me very much of Yngwie's. Surprising? Maybe not so much since emgs are so clear that in that respect they are almost like single coils. *So, it's possible to sound like Yngwie with humbuckers. It's more your playing and your amp that will change the tone moreso than your pickups.
My recommendation for you is to get a Dimarzio Humbucker from Hell. *It's a goofy name, since the pickup isn't a screaming, distorted pickup at all. It is ultra clear and relatively bright. *Is there any particular reason you don't just want to get the YJM dimarzio pickup other than it requires a new pickguard? That would obviously be the easiest solution but if you're stuck on humbuckers then get a humbucker from hell.