I've been getting my feet wet with Audio Snap 2.0 ... and, I must say it is pretty fantastic!
 
I'm taking drum tracks recorded in a rehearsal room with 2 overheads + a kick mic and a snare mic and transforming them into a really nice sounding kit!
 
The first order of business was fixing the kick. It was miked improperly and sounded like someone banging on a piece of cardboard. Seeing as it had it's own track, Audio Snap set up was a breeze. The default settings were enough to copy a clean series of midi notes to a Session Drummer 3 Track, I had set up. Less than a minute later, I had me a new snare drum!
 
Once I had the kick & snare sounding pretty, I realised how awful the overheads were sounding. The cymbals were stinking up the place and there was no chance to get a decent sound. That's when I decided to use Audio Snap, again. This time, I wanted to see if I could replace the cymbals, hihat & toms.
 
So, I copied a new midi note from Audio Snap using the hihat. This time around, I lowered the threshold a bit to make sure I got a good selection of transients, just to make sure I triggered every beat. Now, I'm just spending a lot of time in the PRV, sorting out my midi notes: throwing out the kicks & snares I already have, and moving the others to correspond with ride, crash, open hihat, pedal & toms. This is SO cool! The drums are kicking some major butt, now, and it has cleaned up the mix a LOT!
 
Another thing: the drummer was not spot on, on a lot of upbeats & fills. Sometimes he even missed a kick or snare beat, completely. Well, now nobody will ever know All I needed to accomplish this, was the 5 minute tutorial video on Cakewalk's website and Scott's Sonar X2 Power Manual. This is so great! I can't believe how much fun, this is!!!
 
I am LOVING Sonar X2
 

You might be able to save yourself some time sorting through all those overhead transients by using R-Mix or just plain EQing to isolate parts (hi hat, crash, ride, etc), render the effect to a new clip and then applying audiosnap to that. I've never tried it but I've thought about it for some of my old stereo tracks that need salvaging. Also instead of sorting through the MIDI notes created from the transients you could instead enable/disable transients in the overhead tracks before extracting the MIDI. Just some ideas to play with. I too very much like audiosnap now that I understand it more. I do find it a little... uh, weird sometimes but when it's doing what it's supposed to it is an extremely powerful and useful feature.

Excellent tips, Beepster!

I was already beginning to think of alternate routes, for the next time I use this feature. Just to make things a bit easier ...

I Love Audio Snap!

Glad to offer up some alternatives. That's one thing I like about Sonar and the advancement of digital audio in general. So many ways to approach things. The flexibility turns it into more of a creative tool than simply a means of production. I keep getting surprised at what I could do if I really put my head into it. So far though most of it is all theoretical on my end. Just now starting to put these ideas into practice. Have fun.

Oh and you could also using gating/limiting to isolate things further if you wanted just to get rid of any remain quiet transients. I figure the less you have to rely on the transient detection threshold algos the better.