Honestly, it's not the drums that separate Pyromania for me, it's the vocals. On the first two, Joe is a rock singer, screaming and screeching (in the best possible way). Very Bon Scott. On Pyromania, the vocals started to become very processed (not the word I want, but you'll get my meaning) and it's been that way ever since. Compare the chorus to "Let It Go" and "Photograph". Even the ballad - Bringin' On The Heartbreak - wasn't as processed. I saw Def Leppard with Kiss in 2014 and Rick Allen KILLED it. Yeah, he may not be playing the same way as Mike Mangini, but he played every note in real time, and that's all I can ask of my rock bands.