I tried this in the week. I have to admit to being sceptical at first. I was, however, hugely impressed.
Sailing out, the board seems to grip a lot more than modern mono-concave singles or twin fins and I was getting a lot more floaty airs than I normally do (on a 5.3, fairly well-powered). It seemed to cut into wind on take-off a lot better than other boards I have tried, making it ideal for rocket airs or backloops in onshore conditions!
The board is slightly later to plane than my New Wave single fin but not annoyingly so and it was getting going fine in the marginal wind that I started my session in. I found that this was remedied by pointing slightly deeper downwind than normal to unstick it. Once going, it sailed through the lulls very well and was really happy popping over the messy stuff.
On the way in, it is very playful and definitely loves full rail carves more than the back foot twin fin style. The waves were not great by any stretch of the imagination but I did have a few magic moments getting the odd nice smack.
I am really looking forward to checking out the RRD quads to see how they compare. However, on the back of that session, I am DEFINITELY buying a quad this year!
If you want to try the Fanatic this weekend, and I highly recommend you do, be sure to give Chris or Roscoe a call on 01243 513077