I believe they are just a replacement for his aging Simmons pads, meaning he will still be using the same sounds. You know you're a particular drummer when you choose to make your own pads because nothing else does what you need.
Anyway, enjoy the show - I'm going next Wednesday.
are you saying that his drums are made of cymbal alloys???? like, you mean his primary drums right? not some speacialty drums he has around his wooden shell drums? or are you talking about his electronic pads? i didn;t think there was a such thing.