Not quite what you’re after but I put a thread up on here a few months ago about the riser equivalent. Had mixed responses but they mainly feel into two camps: “don’t have them and they’ll break” and the others were “do have them and they haven’t broken”.
I bit the bullet and got myself a pair, very happy with them. Ridden and crashed them in the alps, and no reason to doubt their strength. Nicely finished, very comfortable. I’d recommend going for them, they do have some pedigree with carbon.