So, the proper Velo Orange rail was waiting for me when I got home. That was quite a surprise. The shop (Carson City Bike Shop) had emailed me Tuesday morning to say that they'd ship the rail that day. I assumed since this was after-the-sale service that they'd send it by the least expensive means possible, and having gotten no tracking number reinforced that expectation. Instead, they sent it by Priority Mail, which is pretty quick from Nevada to Oregon. Chapeau, Carson City Bike Shop!
The Velo Orange rail weighs 210 grams, compared to 80 grams for my DIY rail (that's more than 4.5 ounces if you're scoring at home, or even if you're alone). The VO rail is considerably prettier than mine though, so on it went. Pictures tomorrow, maybe.