So, I have already tried the board (14'0 x 24.5) in several conditions: downwind on an inlet and rivers (with 30 knots), pure flat and surf. Now I only have to try it on a proper ocean downwind.
My impressions are the same as anyone else that already posted here about the board: super stable (for its width) on all conditions and fast (very nice glide). It was really playfull on the downwinds I did; I had more stability than what I was used to and since it's also a fast board I can catch all the bumps nice and early. This gave me the confidence to play a little in the bumps, turning, trimming and just having fun. Can wait to go for an ocean downwind!
I've tried three times in the surf. Waves were between 2-3 ft and windy on some of the ocasions.. It's an 14'0 so it's not easy to handle in the surf (the 12'6 is much easier), but if you are a good surfer you will have no problem with, just try not to get that nose in the water surfing or going through the whitewater. I caught a few closeots and the board responded well; I went in early, walked to the tail and lifted the board nice and easy. Also, on occasion, the withewater hit the tail (on the closeouts) and I managed to control the impact and continue to surf it to the beach.
I hope I get my new GoPro soon so I can do some videos on downwind and in the surf.
I'll leave you with this amazing photo of my friend Diogo Caseiro surfing the RS 12'5 x 25'' in Peniche.