I currently own three Hill's. A 66", lamboo Wesley Special, 50@28"; a 64", TD "RedMan with 5 lams of yew, 53@28"; and a 66" TD "Cheetah", 56@28". At my 27 and 3/4" draw they are all smooth to draw. I would not recommend going below 64" in length with a 27" to 28" draw. My experience tells me that the shorter (64")bow will provide a little extra performance, but will not be as smooth as the 66" length. I personally have owned and shot 68" and 70" Hill's but I have found that I prefer the 64" and 66" bows for my style of hunting. If I could only have one, I'm not sure which one I would choose. It would definitely be one of my takedowns. Good luck in your quest.