With a Chinook 8" fin box from Mark Taylor at Surf Sail Australia and the wealth of fibreglass skills of Mark Taylor Board Repairs in SA you end up with a very tidy large wave Quad Thruster (101) that works really well. The 20cm thruster and Stubby 12cm sides work - roll on winter swell - really for those cross off 10-30knt days where you need the float and the rocker has a calming effect on the gusts and it stomps up wind (compared to quad)

An experiment that's actually worked