Howdy all,

I got me a custom dynamo wheel with a Schmidt SON hub from Peter White this Christmas and it's about time I get the lights as well. I'm leaning heavily toward the "Busch & Müller LUMOTEC IQ2 LUXOS U" and one of the B&M tail lights because of the included USB charging, the handlebar button, and the rear brake light monitoring.

My questions:

1. I will likely mount the light using my fender bolt. However, this will put it just behind my cantilever brake cable. Who has done this and does it make a noticeable change to the beam?
2. Has anyone used any other mount for this or similar light?
3. Which tail light would you suggest? I understand that there is some restriction with the Luxos for monitoring the tail light. Something about it not being allowed to ground to the frame. How does that factor in to the light selection?
4. Do these lights come with the appropriate wires?

I'll also take any additional advice you can offer.

Thanks.