As Len said, this is a "no-win" one. There are so many variables in this question to have an affect on accuracy. The best way is to have a few top-end archers take the 2 bows, shoot them in an indoor target round, and see which one scores the best. I'd bet on the 36" bow. At some point the string angle/axle to axle length has a diminishing affect on accuracy-I think around 30" is pushing it. String angle, riser positioning, cam, brace-height, balance, and physics play the most in accuracy, not to mention the shooter. You can take a Mathews Ultra II, and other bows, and add almost an inch of brace height by placing the string on the shortest draw length peg. That Ultra II is now a 36" bow with a longer draw length, but is it more forgiving? Depends on the arrows used, optimum cam position, and if the most efficient use of physical charecteristics are in play.

A bow is like a complex teeter-toter-vertical and horizontal. Too short, to wobly, unsteady; too long, stable, but too slow, and lathargic. If you look at some of the top end bows, there is less of a change in FPS, when compared to some lesser bows, between draw lengths. This is because the bow is designed to be an effecient machine, making the most of the limb, cam, and riser design/positioning to produce the most speed and power.

Most of the materials havn't change too much over the past 3 or 4 years, but the physics have been constantly pushed to produce optimum performance, within the limits of science. I'd still bet on the 36" bow for accuracy, and a 40" over the 36".

Jeff...U.P. of Michigan.