Pretty sure he was using stock pickups on previous albums as well and his tone is fucking gnarly!If I recall, Isaac from KL ripped his Fusion Edges from his RGD to put in his new custom Iceman.
I'm a weirdo because I like most of the stock Ibanez pickups I've tried like V77/87's and Quantum 7's. The only ones I don't like are the CAP-VK's: I found them to be too hot and midrangey.