I'll answer my own- no, It won't

The wheel is almost impossible to get off with the rack installed.
The supplied "cam" fittings and extension arms were machined so poorly that the extension and rack truss could not both fit in the "cam" simultaneously.
The LHT mid fork mounts were so close to the rack that the extensions, had the cams evenworked, would have been useless.
Ended up using a 20 mm cap screw, a flanged 1/4 inch nut as a spacer, and a 1" fender washer with one side bent 90, and a rubber lined strap clamp.

It is going back as soon as I return- as inadequate design, and faulty manufacturing. Then a Jandd Extreme will get ordered.