Anything around 50 cm, please. For Power box system.
The Power Box is not designed for a fin that size.
may damage the box, why don't u get a formula or a free formula....?
They do make them, but it's about the maximum size, I think. It will only damage the box if I hit the bottom!
OK, let me explain myself, so you guys can stop nagging me to go Formula...
I HAD a free formula for 6 months or so, with a 9.8 V8 and a proper formula boom, and I had lots and lots and lots of fun with it. I think I got more planing time than 99% of people for those 6 months. I used to come back to the beach with my mind totally blown, mumbling "OMG that was amazing", after 2 hours of white-knuckle fully-powered sailing -- and the usual bunch of guys on the beach would be like "What? We didn't even rig up, there wasn't enough wind"
...so yes, there are good things about formula!
But here's the downside: After all those countless planing hours, I found that when I got onto a smaller board in better wind, I had no balance anymore. My gybes were worse than ever. I had no sensitivity in my feet when it came to feeling where to put my weight. Tacking? Forget it. All those heli-tacks and upwind 360s I'd practiced so many times on the formula board? Not happening. Back to square one. On formula, all I learned was to use strength; finesse went out the window. And I want to continue to improve, before my next long overseas windsurf trip. It wasn't happening on formula. Besides, planing on a smaller board is so much more fun! After the NE, I tried my free formula again and it felt like I wasn't even planing.
So, one solution is to have 2 boards, right? Use the smaller one in better wind. But it seldom works out as well as it should, because you always take the formula out first, and you get planing, and when the wind picks up for a while, it's often impractical to head back and change gear when you're actually not TOO overpowered...and anyway, if you change, you're still going to be uncomfortable, because you're not used to the smaller gear.
I think the best solution (for me, not for everyone) is to use smaller gear (in my case an 8.5 and a big freeride board) all the time, get used to it, stay out until the wind picks up. I can sail 4-5 days a week, and I live at East Coast, so I can usually get some wind if there's any going.
I'm just a bit sick of being the last guy planing, when I used to be one of the first! Someone suggested that my 44cm fin could be too small, and a 50 might be the go. Worth a try.
