Yes, still much easier to hit with aluminum, even though the BESR is similar. I remember them doing the following change to the bat, which trickled down to HS, which no longer allowed teams to put up video game numbers. What Is The Maximum Allowed Value For The BESR (ball exit speed ratio)? When bats were first tested in 1999, an initial lot of baseballs was used. The tests were conducted by using a pitch speed of 70 mph and a bat speed (at a point 6 inches from the end of the barrel) of 66 mph. Under these conditions, the best major league wood bat yielded a BESR of 0.728, which the NCAA then set to be the maximum allowed value.