I have a pair of 44cm ctc Eubios if you'd like me to measure something. They're waiting to go on my Olmo project.
One thing I've noticed is they are ~42cm ctc at the bends and 44cm ctc at the end of the drops. Also my clamp area measures 26.2mm even though they were advertised as 26.0mm. I'll have to gently spread the stem to go over the collared area without scratching the finish. Have read about others with this same problem.