I have a 4 fin quiver of new Black project Fins and have so far got the 29cm S-Type and 32cm Race fin a good try out in a range of winds on flat to choppy inland water.
Inland lakes only give flat to choppy water in gusty up and down wind.
Board used was my Sonic Australia 275 freeride 59cm wide. and sails used Naish 6.4m stealth. KA 5.8m Koncept, and 5.3 Hot sails SO.
Firstly the 32.5cm race replaces the 32cm freeride fin standard with the Sonic. But much more a slalom shape to the BP.
I am not traditionally a very good pumper but on the occasions i tried the BP and pumping I did find it easier to get planning which was noticeable to me. with only my old Garmin 201 to use I found on the flat water of Greens lake that I was still only part of a knot faster but got there smoother and a little quicker. (maybe the smoother made it feel quicker) but what was most noticeable was I stayed there with a calmer board. Turns into gybes and through and back to speed were again smooth.
Spinout is something I have nearly wiped from my tricks repertoire so having no sign of spinout was not unexpected. Some jumps of the odd chop ramp worked well and maybe here the fin biting in again quickly was an improvement.
The SType 29cm was fun. this fin seemed to hold on in low range easily as good as my old 32cm. but with all the extra speed of a smaller speed fin. I can't wait to put this one on my Missile.
I have used the F2 28cm Missile fin on this board and did not feel comfy. however from now on if the wind is over 20kts this is my new go to fin. The Gps gave me an instant 3 knots in a short run. (Greens lake has a short speed run that ends when the trees start stirring up the wind).
The quality of these fins is spot on. I found no burrs or dags or need to fine tune Tuttle box fit etc.
I have still to try the 35cm freeride or the X-40+ Starboard tack Assy. the 35cm I have yet to need and the Greens lake run is port tack with a wild choppy lead run(sort of like a reverse of using the low tide channel bank in a sandy point easterly starting on the far bank and heading across the chop.
What I can say is that I am glad I gave the Black project fins a go and can't wait to try them at Sandy Point.