Yes, the twin fin that I made that was inspired by Ben Aipa is going great guns! I have been riding it a couple of months now, in waves from 1 up to 6 foot.
The dimensions are 5'8" x 20" x 2 5/16" with a flat deck, so it has a decent amount of volume, majority forward.
I love the get up and go, and the option of putting your weight foward for cruising along, or driving more off the back foot for speedy turns, then shifting forward again to maintain control. This may sound a bit complex, but it all happens without too much thought.
It has me going places and at speeds that I have not gone before on a wave...Love it!
Will be availible as a model really soon....