Hi,
we built 2 NYX Ebikes using the QS and you are right : those big wires are quite a challenge, but we found a way to force the wires in a certain direction (using special washer we made) on our standard 150mm dropout swingam. Unfortunately, those 2 ebikes are already at customer's place, but if we have the opportunity to build robohead's NYX E-bike, we will for sure put some pictures online.
Thanks,
Cedrick