I shot the new cam and a half AR34 yesterday and here's what I found.

Faster. By about 12-15fps all else being equal to the single cam

Smoother draw cycle. Signifiantly smoother. The single was nice, this is dreamy. No humps or bumps.

Much bigger valley. The valley is about 3 times the single models. Letoff is significantly increased as well. Wall seemed a little sloppy and I personally prefer an effective 70% or less to be as accurate as I can be. This was probably closer to 75% effective which could be plus for a hunter looking for a really smooth and easy shooting bow. The "blade" target colors were a little "too fly" for this white guy, but it does leave an impression.