Arthur P. has made 2 great posts on this forum about high letoff bows. Many archers with a very high let off will crank his bow up a few more pounds, but the archer still has to pull that weight at some point in the draw cycle. I have seen some negate their " so called" higher letoff advantage by doing so.[&:]

Just my opinion....and admittedly I do not have the greatest shooting form, but I have found it more difficult to tune and shoot a higher than 65% letoff bow.