They're both the same model - Hugi TD 145 OLN. They're no longer available; replaced I think by the DT Swiss 540s (
http://www.dtswiss.com/Components/Hubs-MTB/540-tandem-en) which appear to use the same Star Ratchet drive.
I'm pretty sure I've got on top of their rather demanding ways. It's all down to the servicing, and woe betide you should wash out all the Magic Grease. You absolutely must must must use their infeasibly expensive yet fetchingly pink grease (£15 for a thimble-sized pot, I kid you not) otherwise the ratchets will definitely fail in a depressingly short time.
My biggest mistake was to clean the cassette on the wheel. This allowed degreaser to get into the works, which removed all the infeasibly expensive yet fetchingly pink grease - and misery followed - twice with the Swallow, and I suspect close to once with the Longstaff. So I now remove the cassette to clean it - and never ever ever allow degreaser anywhere near the hub.
LW&B hates these hubs; I think he considers the Star Ratchet drive design fundamentally flawed, and I have some sympathy with that view. However - whilst yes, they may be flawed, and yes, they may fail suddenly and more frequently than other hubs, they are completely serviceable at the roadside. I have now learned how to strip and service the hub at the roadside; we carry a set of Star Ratchets and springs and a pot of infeasibly expensive yet fetchingly pink grease. The freewheel body pops off the wheel without having to take off the cassette, so there's no need to carry cassette removing tools - it's all pretty straightforward.
Having said all that - in our points chasing year, we had no problems at all with the Hugi on the Longstaff - despite some desperately industrial weather (axle deep floods, that kind of thing).
ETA: Oh. The single speed Get Out of Jail option. That was utter n00bery on my part. I didn't stop to check the size of the emergency freewheel. Needless to say, it was 1/8th - our chain 3/32...