I mail Trek Aero after all, seeing how the eight ducted rotors featured in their 'Trek 1' would appear adaptable to the layout of the wearable drone (as per recent post). They are however fully occupied with prototyping a client's vehicle beside their entry GoFly's challenge.
In view of the number of projects clamouring for large EDFs or Electric Ducted Fans, it seems they hit pay-dirt.
For all their drawbacks however free props offer advantages too, so I'll stick to the knitting.
