I am a fan of "longer bows " in general and Hill style bows are no exception.
For my just on 27" draw length I prefer 66" is string follow and 68" in a reflxed bow. Many moons ago I owned a couple of 64" Hills, wanting to try shorter for ease of travel etc and did quite well with them .
In fact If i just kept shooting them I'd probably be very happy with them as a hunting bow ... but it was when I picked up my old halfbreed , battered and well used at 68" long that I remembered why I love these bows in the first place ... smooth and forgiving and in the field that equates to a fine accurate hunting tool.