My LBS guy pointed me at the KMC website. Clearly QBP has an error in their catalog.

First ride to work this morning. This will take a little practice. No coasting. Ever. The most interesting points occurred when I would stand up from a stop, then sit back down. Like most people, I'm used to coasting just a little as I sit. I can see where if I had gotten going a bit faster and tried that, I could get thrown over the handlebars.

I think my gearing is a bit high (47x16) for urban commuting. If I replace my cog with a 17T, that will move the axle forward by roughly 1/4", right (horizontal dropouts)? Or 1/8"? (Let's see, it will add 1/2" to the circumference, 1/4" to half the circumference, so more like 1/8" top and bottom. So 1/8". I think.) The axl is sitting fairly far back in the dropouts now, so I think I can add a tooth back there without any problem.