I finally made it out with the new Test Balls. Myself as well as the rest of my group noticed a different sound off the clubhead. It also felt as if it was a harder ball that the ProV 1x's that I normally play. I was getting very good distances and very straight with the ball as well as great spin around the greens. I would say it felt to me like it was harder than a ProV 1x but spun like or better than a ProV 1. I would also like to mention that with the test balls you sent me I also played my best round to date, a 68! I would like to know what type of ball this is because I would like to use it in the future. Thank you for the opportunity to try this test ball out!