In the surf movie, featureing Laeid Hamilton (excuse name spelling)'Teo',pronounced 'Too' is a lot of big wave tow-in surfing and has a heep of foil board rideing,great cinematography,if anyone is interested
These guys do carbon hydrofoils with straps. Not sure I'd want to have 1 foot come out on a foilboard though. Love to try one - anyone in Melb got one???