I just bought some wing foil material and wanted to test how the wing behaves (first Time i touch one wing) before going in water (and one injury on shoulder prevent me going in water during weeks).
So i put my in-line skating, found a small windy area (of less than 15 meter diametre) and played more than one hour with the wing (5m2) despote very turbulent wind.
It was easy, great and rewarding... Made a lot of "jibes" and "racks" . So it is an Excellent training , and i learned a lot without drinking water ni fighting to climb on the board (yet) .
Really pleasant moment, i recommend the experience.