Steel 'Ultimundo' road frame in a disc version

I have only built a handful of these so far. Since there's no more S-3 tubing I have switched to Columbus Spirit and Life to get the weight of the frame down. I ovalized the 38 mm down tube so that it resembles the S-3 that I used to use when True Temper was still making bicycle tubing. The frame should ride the same as the S-3 version as all the other tubes in the frame are the same as the original version.