Anyone used these puppies ? Have been trying the equivalent to the MR twins and a 4.6 c drive in the tail. Findings so far , fast , great for pivot turn off the top and for busting gouges on the face , on the bigger stuff (steeper faced) yet to really nail the bottom turn - almost feels like a 2 stage turn , but where it sends you is definitely more vertical than the MR's . Rode them then on a 8'6 laguna bay and it was lucky to be 2ft face , on the backhand was a belt fest , quick between turns and not getting stuck up the top , a lively feel . thanks for the demo Troy.
I had a thruster set that I used on a 9'8" sandreef fish, worked really well on that board, but just didn't seem to be as good on any other boards I've had.
You can read what I wrote about them at: www.standupzone.com/forum/index.php?topic=15007.0
They are only available in FCS boxes,. not Futures.
Here is a video on a short quad SUP, with C-Drive twin fins fronts, and small "QS" rears