BCDrums: Thanks for the picture of the D6, It looks great! I am currently using the quad red myself. what mounting problems were you having. I have the Edelux II headlight and the B&M Toplight Line Plus Taillight. My bicycle is setup for the SL version of the son Dynohub. I have a Tubus rear rack with the 50mm spaced holes for the light. I was able to put the quad red above the Toplight by using a Tubus fender support bolted to the back of the tailight with the Toplight bolts. The fender support founted upsidedown has an 8mm hole in it. I bought a light mount for A Nitto rack and bolted that to the fender support.