6800 hubs are definitely click adjustment, but they don’t look the same as the DA ones, it uses a springy washer/pawl rather than the toothed nut on DA. And they’re only £27 from SJS. I imagine it’ll fit 5800 front hubs, not so sure about the older hubs with more solid axles. But then the hub shells look like the same old shells they’ve always used.
Disappointing my 5800 hubs didn’t get it, some sites said they did, but I think it’s just alen key + 1 cone spanner adjustable rather than click adjustments. Odd they didn’t trickle it down, I imagine it’s much less fiddly in the factory which is where they’d really be bothered about it.
Tip for C&C adjustments, just get it about right, then tweek it in/out just moving the cone/nut that tightens in that direction (i.e. no need to loose the other first), the other will give just enough and you can get the tension perfect first time.