Hey I just partialy answered your questions on the OT thread, I got a MD also and I must say the OT is kind of better suited for on the fly drum fills. I hope someone could bring me up to speed on this topic as well!

all I could say is the CTL ALL machine can do a great buildup although it wont be affecting the pattern,

Other than that I guess un-mutting tracks could do the trick for added hits but meh… I just wish it had one shot trigs as the OT has.