Haven't got to test the Spitfire enough to tell how the fins go yet. Only tried it with PC5 and PC7 until now, but the waves haven't been good enough to actually test the board or the fins. One thing is for sure though, the tail is wide and you need to get your back foot on the sweet spot... guess it will take some time to get used to it, as I've used my Alternator quite a bit lately. Anyway, I was curious about how much difference there actually was on the different fin models, so I tried to use Layers in Photoshop and I've posted the images below. Still not sure about if I should get the K3 of AM-2 for my Spitfire, have to test out the PC5 and PC7 first to get an idea on what they might be missing. What is the general idea on such a short and wide board (especially the tail), normal to need bigger base, depth, rake ?
PC5 and PC7:
K3 and AM-2:
Animated gif of both photos:
And here's my new 5'8 Spitfire :)