I saw them. They looked nice. But, CYFAC was one of many framebuilders that had nice looking, very well made frames that were otherwise unremarkable. I would ride one without doubt, and happily. But, I think they would be tough to market and sell because they are “only” very well made.
you might be right about the tt length customization. The GURU rep and I had communication problems. his english was better than my french, but i still dont think we each fully understood the other.