Hi Dan, hows it going mate?
Although i haven't played with the 2015 kookaburra i have seen it. But first let me tell you about the 2015 kookaburra range:
Instinct - Light bat from kookaburra so you are going to find weight between 2.6,2.7,2.8. With the Instinct you will be getting small edges, high spine, a bit of concaving and a medium to low sweetspot.
Verve - Also another medium weight range bat from kookaburra, again 2.9-2.11 in weight. You will be getting a slightly bigger edge than the Instinct, mid to low sweetspot, again a bit of concaving and a slightly smaller spine than the Instinct
Kahuna - Medium weight range bat form kookaburra, you will find weights from 2.9-2.11. It has a mid sweetspot, normal kookaburra kahuna edges, small spine and again a bit
of concaving
Cadejo - The heavier bats from kookaburra for the 2015 range, bats come in about 2.10+ in weight. It has a mid to high sweetspot, the cool thing about the cadejo is that there are small groves to the edges this i think is a clever way of reducing the weight in such a way that it doesn't affect performance. The Cadejo has the biggest edge in the new kookaburra range - your gonna get 40mm edges and a high spine ( 65mm+ ).
Generally i dont like kookaburra bats because i dont see any value for money for the bats. I also didnt like the huge amounts that they had in their previous bats. But the 2015 season seems to be promising.