I thought the gn claimed the scoop allowed for better balance, while not effecting the middle. It went something like they pressed and made the wood more dense on the back, so the scooping had little impact on the performance, just a weight improvement. I also remember something about "Parimeter redistribution" where GN claimed they had moved the wood towards the edges. I guess Leo's GN T20 bat is an example of what they might of done first, then scooped a bit of wood of the middle for improved pickup. I played with my fathers back in the late eighties and it didn't play worse/better than any other bat as I recall.