In the end, I used zip ties through all the bobbins and then used a combination of zip ties and Velcro to hold the mobius onto the plate, one front to back and one around the middle. I put a couple of those sticky foam fc pads at the front to create the angle under the Velcro as well as tightening down the zip ties on the back bobbins so they were compressed most of the way down. This gave a good angle and plenty security. I've stripped it down no, so no pics, sorry.
Also, I've wrapped my mobius in high viz tape, just in case. Sick of losing them now. I've lost 2!
Also, I've wrapped my mobius in high viz tape, just in case. Sick of losing them now. I've lost 2!