It turned out my mast 400 (not brand mast) doesn't rig fine with the Apache 5.2 despite it's fine with my kar 5.5) .
Sail is too belly downlow, lot of pressure on the bottom cam and if i try to cranck the DH the leech opens too much.
Mast is probably too FT to be good with a foil sail.
For that reason I'm thinking at a North platinum 400 sdm.
Does anybody can report something about its bending curve (supposed CC but from what i know it's a crossover towards FT)

Thx

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Foil équipement:: Tribal - Loke

You should ask Gaspard Carfantan, Who was part of the Phantom team Last year, before he signed with Patrik.
Hé has also a 400sdm for sale...
You can reach him on facebook

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100% foil

A pure constant curve is supposed to be 76% top; 62.5% base.

https://www.unifiber.net/windsurf-masts/bend-curves

You should ask Tribal for the curve required on their sails.
Duotone/Loft Sails/Gun Sails are supposed to be the most compatible with other brands.
GA/S2/Severne will be a little more hardtop, which could better fit your sail; but it's only theoric, you may try.

Yes, i could buy a Tribal mast and that's it.
But, to stay cheaper, i'm wondering if i could use that mast (found a used one...).

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Foil équipement:: Tribal - Loke

You have one to sell at SWELL ADDICTION Brest

Warning, the mast diameters are not the same between the North/ Duotone and the other standard SDM !

https://www.swelladdiction.com/fr/1038-mat-occasion-windsurf

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ALCHIMISTE Composite
Atelier spécialisé dans la réparation composite
https://www.facebook.com/AlchimisteComposite