I have played the game on many occasions using various bows, arrows and settings. What I cannot do, however, is to achieve kinetic energy of 110 thus allowing the game include the hunting of elephant, hippos and the like ...... the maximum that I achieve is 107.96. Any ideas?

Ok. On the weekend I set the bow to maximum draw length of 30 which resulted in KE of 117. Previously I used a draw length of 29 which is my actual draw length.