over the last year or so I have seen a lot of variations and ideas for learning to foil and I'd like to float the idea that we will learn to foil the way we are taught.
if you learn to kitefoil with a relatively normal kitefoil then you will learn to kitefoil in X amount of time peculiar to you.
if you learn on say a short mast kitefoil then you will learn to kitefoil on a short mast in X amount of time.
if you learn to foil behind a boat, again you will learn to foil behind a boat in X amount of time peculiar to you.

so, if we assume that free ride kitefoiling on 90-100cm masts is your thing , then you will possibly need to adapt how you learned to how you want to foil and that will take more time.

The question is how much more time Vs learning on a std foil.