The main difference between the W125 and a SUP foil board is the mast track location. In the pic the out wit tracks are much further forward.
having the ability to micro adjust the foil in the tracks (other than B or C) can make a frustrating session into an excellent one.
I stand much further forward on the out wit to pump the foil up, then gradually sliding the feet back depending on the wind strength.
Obviously it's another board expense but depending where you foil if it's a very gusty area it's better to go SUP/foil board, quicker learning curve.
my set up is 90 mast, 84 wing, 42 rear in B, (number 5 on the outwit track)