So I'm about to spring for a Schmidt SON hub and a light to go with it. I've been poring over Peter White's excellent information for the last few days, and I've gone over all the lighting threads here at BF. I have a couple of specific questions left and would love to get some additional first-hand knowledge.
1) The Schmidt hub -- any problems I should be aware of?
2) I haven't yet decided on the 20 or the 28. It's extremely rare that I'm going less than7-8 MPH, and I figure at that speed I don't need much in the way of road illumination, so I'm leaning toward the reduced losses of the 20. But I'm also considering going with a two lamp setup, and while Peter White says the 20 will work, I wonder if anyone has any personal experience. And maybe the additional drag of the 28 is so low that I'm worrying about an inconsequential.
3) I'm also leaning toward the Lumotec light, rather than the Schmidt E6. I think I'd rather have the slightly wider beam of the Lumotec than the narrowly focused E6 -- and if I'm wrong, I can add the E6 secondary later. Personal experiences?
4) Mounting: With a single lamp, I plan on just using one of Peter White's fork crown mounts. They supposedly work fine with the lightweight Lumotec, not so well with the heavier E6. I've thought about using the Cronometro "nob" fork mount, but Jan Heine says it will eventually slide down the fork and tangle in the spokes. Any personal experiences here?