I bowhunted 2 yrs with my Howard Gamemaster Jet, 66" 60#. I always shot 62" recurves but the smoothness of that added 4" was a pleasure. Unfortunately, as a ground hunter, I blew an easy shot from a kneeling position on a nice buck when the lower limb bounced off the ground when drawing the bow back.
Although I took 2 deer with the Jet when still hunting, I found 66" not conducive for my kneeling shots. Sold the Jet and have regretted it ever since. Should have kept the bow for small game and stump shooting. Longer is smoother and stable.