Jeff,
I shot the 2005 models of both the Ultratec and the OG this past spring. One difference is the grip. Very different on these bows. Of course, you can change either once you buy it, so that is not really a big factor. The draw on both was smooth, but different. They peak differently, so it isa matter of personal feel. The c.5 adjusts, the EQ does not. In my limited testing, the EQ was more efficient. Better energy transfer using different arrow weights.

Bottom line, I liked both. I ended up with the OG for 2 reasons. 1) it was $200 cheaper than the Hoyt (really, it was) and 2) the Bowtech dealer is just better.

I have never looked back. I love that bow. I am shooting better than I ever have.

JMAC