I went to the drum camp in Cleveland last month, where I spent a day each with Virgil, Chris Coleman, Weckl and DiCenso.
I took a lot of things from that camp but one little thing I think I can see for myself is:
After hearing them talk about how much & what they practiced, who they played with etc etc and seeing the result, no amount of research or explanation and imitation will make you sound like them, they can't explain why they play the way they do, it's bigger than them and the proof is in their playing.
Not trying to sound like a contrarian or anything, I am just relaying something I realized for myself.
I got the new Mats/Morgan album and I've been listening to Morgan Agren. He is a very interesting player, but my only research is just to listen and soak it up subconciously.