If a bow gets too long for draw length, better to have lighter tips.
I like 55-63" for me, hunting on my rear, ambush style, and my draw from that position is fairly short. I relate to the ground hunter's issues.
60" / 27 = 2.22
63/ 27 = 2.33
For me, the ratio is from 2.2 for sinew backed to 2.5 unbacked.
D bows rock IMHO