I'm of mixed feelings about this. On the one hand, I just like to enjoy Elmer Lee, Jimmy Russell, Parker and Craig Beam and Gary Gayheart's (et al) handiwork -- I do not presume to have the faintest idea how they go about their business so wonderfully.
On the other hand, after an interesting, informative and prodding discussion with Gary (Gillman) at the Festival, I was intrigued by the idea of vatting, and have tried it a couple of times in a limited way, with mixed success. I am especially intrigued by Gary's rationale for vatting a wheater with a rye bourbon (preview of Woodford Reserve's 4-grainer?).
I'm not likely to try it with Stagg or Pappy or something already uniquely interesting. But, when I'm down to the dregs of VOB and Weller Special Reserve, for example, I'm likely to try it yet again.