I bought a set of fcs pc-7 bamboo fins for my 9'5" hokua. They come as a thruster set but the two side fins combined with the sides that came with the hokua work nicely as they have a similar profile only slightly bigger.
If you have a finbox to fcs adapter you can run the full thruster set which is super loose and fun on small days, but generally I prefer the quad setup.
Hi mate I have played around with quades on my hokua for 12 months now .I have Fcs MR/TX in the front these are large & Fcs GX on the back which are small Works ok for me , I did snap one of the TXes a couple of months ago riding double over head
Works ok for me , I did snap one of the TXes a couple of months ago riding double over head 
