Here are some comments I made about taking a drum mix recorded (live) to a click and then "Audiosnapped", essentially de-quantizing it,  so I could drop it into a live band recording (replacing the original drum track because it was poorly recorded).

I bring this up because at the time I was evaluating every transient on every track in a sub-mix of multi-tracked drums.

Today, I would use a fairly different approach.  
 
http://forum.cakewalk.com/The-Zen-of-Audiosnap-m2536238.aspx