Just started the sup foil journey first session out got half a dozen waves no problem I all ready kite foil and wind foil and wing I use 90 cm for all of the above but have started on a 71 cm for sup foiling. Just wondering what length mast should I use the 71 just seems a bit short and occasionally breaches would I be better of using the 90 or is it a bit too big.

you also get the most power with the wing right in the wave, so with a 36"/90cm mast you are pretty high up there. I have used a 24" for sup/surf, now a 28", I think that's optimal.

I've been using same rig for wing foiling, the extra few inches sure are nicer for avoiding breaches in chop. I think I will try my 36" kite foil set up for that too.

I have only been out once on the sup foil I think it may be my skill level with the short mast that needs adjusting more than the mast needs a just adjusting it seems to be the consensus that around 70 is probably the optimal for the waves on the sup. I appreciate the feedback regarding this and now I have a starting point

you need a FOILSLEEVE - a simple adaptor that bolts to the top of your existing tuttle and extends the mast by 150mm. Then you don't need to pay for a whole new mast - just extend the one you have for those days when you need it. FOILSLEEVE is in production now and will be available at the end of July.