Thank you! I have the conversion on two of my bikes, but it is done in such a way as to look like it came with a threadless fork in the first place--the stems can't be chunky, and they have to absolutely match the rest of the bike, which is tough to do. Easier to do with, say, vintage Cannondales with their thick tubing than vintage steel. It was 1000% not working on this one, and neither was the modern groupset. Glad it led to this.