I have been using Percussion Studio to make some practice tracks, and I thought I would share them with the community.
If you don't have Percussion Studio
http://move.to/percussion, I recommend you pick it up - if you are looking for a tool to help you make practice tracks.
Today I was trying to get a little practice in with David Penalosa's work regarding the Matanzas' Quinto Ride. I was reading an article he published in the old Latin Percussionist Newsletter back in 1999. To help me better internalize the concept, I created a track with rumba clave and a drum marking the key points on the ride. The track is at 220 BPM.
Hope some of you might find it useful, you can find it here:
http://www.megaupload.com/?d=4QASCFYV