Yes I paid the $25 vip price but then it turned into a crowdfunder and they haven't even decided on the width and thickness of the unit yet.
I think they are using the crowdfunder as testers which I am not prepared to pay for. foildrive sent loads of units out to good riders pre production to make sure it worked and do any tweaks before selling to public. yes foildrive is expensive but you know it works. the manta is a pure gamble

im saving my money and when I've got enough will go for Foil drive I think, in meantime I'm using my arms and the wing