In reply to beardy mike:
>Are the lobes wider on the C4? Yes.
Yes - that was my question. Are the lobes on a #0.4 C4 or a #0 Dragon wider than the lobes on a #0.4 X4, #5 Dragonfly or other single axle cams in the ~15-25 mm range? If they are, by how much? And is the 'thin side' of the lobe on a #0.4 C4 or a #0 Dragon still wider than the lobes of a comparable single axle cam?
I've only compared the Dragonflies to the C4 because that's the ones I've got: they didn't seem noticeably narrower to me and I wouldn't have switched if they were, since the lobes 'thinning out' on the small C4s was the main reason to switch for me, but I'm happy to stand corrected if you know exact measurements for the lobes width and they are indeed narrower.
I'm not home, otherwise I would just compare the two and answer my own question.
Post edited at 17:36