[cwsand]

Personally I (almost) never use Elastic Audio on drums - it just ruins the transients for me and bugs me every time I hear it, kind of like a low quality MP3. I use Beat Detective instead. You can map the tempo either manually of using BD so you have a grid, then use BD to separate and conform the resulting clips. BD hardly ever gets it perfect though so you'll probably have to adjust some things manually. It can be tedious but is well worth it if you spend the time to get it right.