Got a Mistral Speed 47 wide coming and want to use my 5.5 and 6.3 race sails on it. I weigh 78kg inclusive of wt. jacket. (Have a Tribal Speed 25 that I use on my 58 wide board and love the fin so probably stick with that type. )
What size would you recommend ? (Tribal chart says 21 for 5m and 23 for 6m)

21, 23 and 25 in the same brand sounds about right:)

I use a tribal 21 and 23 weedspeed in my M47. 4.9 - 6.3m sails

Mikey, I used the Tribal SW 25 with my Mistral 55 and 5.7 last Wednesday, so the 21 and 23 will be great with the 47

So if was to try and buy only one new fin...which combo seeing I already have a 25?
21 and 25, or
23 and 25?

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mikey100 said..
So if was to try and buy only one new fin...which combo seeing I already have a 25?
21 and 25, or
23 and 25?

if the water is very flat and the wind strong and consistent - 21 esp if you are likely to use the 5 .5 more
if the water is a bit more choppy and the wind gusty - 23

Solved... bought both.
Tnx for the help all.

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mikey100 said..
Solved... bought both.
Tnx for the help all.

Sounds like my solution to choosing things..