I have a Hoyt Havoctec 2002 model with versa cam it states 25.5 to 28.5 inch draw lengths. I have it set on 27" , and i have it peaked at 70 pounds. I have a peep sight, string loop, and 2 cat whiskers(spread the very end of the string). I was wondering what speeds i could expect useing a 350 grain arrow, and 400 grain arrow? Also which would give me better kinetic energy?

Thanks