No idea, but if there's another one, what is the difference between different type of handle materials? I often hear terms like 12 piece construction, or treble sprung, 2 piece, 3 piece, cork and rubber inserts, which is all kind of giberish to me. Which ones are best for what, and how do you identify such things on the handle? Most I know about handles is whether it is a carbon composite handle, or oval or round shaped.
I was obsessed with handles and looked at them for ages [years], even though I can see small benefits in the various different handles, I did not or have come across anything that would give you a tangible performance benefit.
Most of the stuff I've read about handles and the performance benefits have been written for marketing impact as there are technically incorrect based on the reason for that type of handle.
A decent handle is something that is glued, clamped well and made from good materials. I prefer a stiffer handle some prefer a whippy handle the different types of handle will give you one of the other.
Round, Oval, Square is a preference some say they help reduce twist some say they help you to play more correctly. I'd say on the shape get something that suits you if you play alot with the bottom hand get a shape that suits you as changing the style of play isnt going to change if you make it uncomfortable for yourself on the bottom hand. You are just not going to like the bat