I have a Vectrix (Hoyt), a Drenalin (Mathews), and a Cardiac (Ross)

The only problem I have with the Vectix is the weight, it's a little heavier than I like in a bow but it's also the most accurate one I own.

The only problem I have with the Drenalin was the cost. Ouch. This is the smoothest bow I own.

I have no problems with the Cardiac, it was the cheepest one to buy, has many of the same designs that the Mathews have and has some of the same features I love about the Vectrix, I highly recommend this bow. The only bad thing I have heard about the Ross company is the customer service is not up to par, this is only a rumor I have heard because I have not actually had to deal with them myself, but like I said, it was only rumored.