This guy is awesome. Talking about how to give weird time signatures grooves. It's well worth the watch, but for the impatient check out 2:58 as he counts in, and at 4:10 for a different groove; all the examples are in 25/16.
[VIDEO]http://www.youtube.com/watch?v=3G7_gjN_BHs]YouTube - Chris Coleman at NAMM 2011 part 3[/VIDEO]
reminds me of the way a band like king's x would treat odd times. there was/is ALWAYS a strong groove. In fact often times, the groove is so strong that though you know *something* is somewhat off, it takes forever to count out the time sig because the groove makes it feel good.