How about different impacts on the type of foil kite (race vs freeride) ?
I have read that race kites, or kites with higher AR tend to go out of shape faster and need more retuning ?
I think I should not focus too much on that feature. Given the possibility to change any mixer system. You just have to know how
The rep I talked to, mentioned no need to adjust mixer. When out of shape, only lines you must change are the wear line in touch with the pulley in the speed system.
I also asked what a new speed system would cost and that was roughly 20% of initial cost (material only) + hours to change.
Flysurfer has set the bar quiet high with their system and its simplicity. I don't know why other manufacturer don't copy that, or implement a similar system.
Good thing I can alway send the kite to the maufacturer and let them do the tuning. I think if you do this in the warranty time, this should'nt be as expensive, maybe even free of charge if you talk nicely
Anyway, I can't decide between FS Soul and Gin Spirit, mybe some has flown them both and can tune in to give a little feedback.