The stays are fine around spreaders, but you need to make a nice piece of carbon or stainless to ensure its a larger surface than the normal wire mounting.

i have been looking for pics, but none with me.

There is another option from maffioli that could be good. its called ultrawire and can be supplied in 3, 3.5 and 4mm sizes in either SK90 and Zylon (PBO) this is a pretty good solution for you guys.