I shot an old Jennings bow with a 48" ata for years. It was (still have it) a wheel bow and is one of the smoothest things I ever layed my hands on. Everybody else I knew shot the 2 cam types but they just didn't feel good to me, so I pressed on with what I had and held my ground.
The drawbacks to that bow for hunting were that is was heavy to haul around all day for spot and stalk. I would develope a tennis elbow in my left arm (I'm right handed) and sometimes I could hardly lift my arm to put it on the hood of the truck at the end of the day. I never had any problems from a tree stand with it, but on the ground shooting from my knees I had to make sure it was clear in front of me. I would also have to do my homework if I planned to tuck myself back underneath a Juniper or Mesquite.
Anyway, I prefered all the little problems with it compared to the bows that were on the market then, even though it was kinda slow as well. I refused to compromise that smooth draw. When the one cams came out and touted the same characteristics I was looking for it got my interest, but it took a disaster to get me to shop. I got caught taking a break hunting Antelope and could not position myself correctly to shoot without spooking the buck about 25-30 yards in front of me. I was sitting on a flat rock a few inches high but I drew and took the shot. The bottom wheel hit the ground as I released sending the arrow on its way, and me wondering what the @#$%^*.
Needless to say I hit the pro shops after the season for a shorter lighter bow. Can't say I was overly impressed with the selections I tried at first, especially the so called short speed bows. Nope, gotta have a smooth draw, don't want that bow to move a hair when I pull back! Then I tried a Q2 and was impressed. It has a smooth draw, not too short at 34", lighter that my Jennings, faster, quiet, and more accuate. It fit me just fine and I'm a happy guy. I'm not saying that shorter is necessarily better, I think it depends on how its used.
I still mess with the Jennings in the backyard once in awhile, but it's retired from hunting.

"Hunt smart, know your target and beyond"