Huey, please take no offense, but your report of a 15 lb bike based on a Performance Al frame and old school odds and ends parts is highly dubious. First are you including pedals, cages, and computer mounts. Did you take a few steps back in technology such as using down tube shifters? That would help. But even so, those frames weigh close to 4 lb. And for the money you spent, it wouldn't seem like you bought a 300 g fork. Without SRAM Red, ultralight brakes, and a really light cockpit, I cannot see how the numbers could add up to 15 lb with or without the pedals, etc. I do this all the time, and I have to say, what you are reporting just doesn't make any sense to me. Perhaps if you listed all the parts of your build, I could see more clearly how you accomplished what your are claiming.

Some folks say, "Without a photo, it didn't happen!" I personally find that attitude insulting, but I have to say a photo with the bike and a scale readout and a parts list would shut me up in this case.