I run dual 85's in my Ibanez RGA and my Caparison Angelus and swear by it. I never liked running an 81/85 combo because the 81 has so much less low end than the 85. You get a great high gain rhythm tone dialed in for the 81, and then you flip to the 85 and it's mud city. I've run an 85/81 combo and it definitely has its advantages, but I'm a sucker for big, fat lead tones. I've found that with a dual 85 combo, you get the EMG clarity...but still retain some of the warmth that you lose from the ceramic 81. At the end of the day though, it all comes down to the woods of your guitar, your rig, your hands and your ears. I wouldn't suggest 85's for an all mahogany guitar, but if there are some brighter woods going on it may work wonderfully. I never would've thought I'd run dual 85's in my Angelus, but between the brass bridge, the maple top, and the ebony board there's enough snap that the 85's sound fantastic in there.