Good suggestion Rob! You got me thinking about something I've been considering myself for ten plus years, though what I'm doing presently is definitely the easier of the two and for the time being I'm doubtful I'll be straying.
I've never camped underground either and certainly wouldn't just for the sake of it, though I wouldn't hesitate if it was a necessary component at some point.
With regard Langcliffe Pot and work beyond Nemesis and the further reaches/Gasson Series etc it's also something I wouldn't consider again without camping. Neither is it something you could do on a whim and hope to be a success, the camping yes, but not where digging is concerned. Maybe with a big team, but that suggestion these days is totally unrealistic.
I wouldn't necessarily throw myself at the Newfearnought Choke either. There's definitely cave beyond it, but cave that probably goes upwards only - something I've suspected (emphasis on suspect) to be fed by Swarthgill Hole (which would be easier to dig to from up there) - whereas the real prize and the only justification for camping and pushing Langcliffe would be the stuff that lies below - descending and reaching the Great Scar Limestone.
The problem with the choke is if you realise you definitely need scaffold, it's a very very long way to be carrying that stuff and the chances are you'll turn to something else before enduring that, unless you've the ubiquitous unrealistic pub big team at your disposal. Bailing the Dementer Sump for example would be a far more worthwhile objective, an idea that occurred during a visit with Ian in 2010, but the possibilities are many.. The area around the Agora is another!
The further reaches of Langcliffe Pot is a strange place, where metres seem stretched unfathomably. The survey suggests nothing more than a quick bimble to the end beyond Nemesis, yet on the ground it's the most significant stretch of the entire trip, with (if you ask me) no end of hazards, which for the most part are untouched by hands even now.
I've visited the Gasson Series four times and everytime paid attention to potential sights of interest for digging, yet become so inundated I've quickly given up, just by the sheer sprawl and diversity along that stretch of cave. You realise pretty quickly the need to concentrate as well. It's as much an enigma now as it was before I'd even visited, and only read of others experiences.
Four of us lead by B-Judd climbed an aven just upstream of Dementer Sump in 2016, after several prep trips, with really only rope and ironmongery, and on the day personal gear and food, yet that in itself seemed a considerable amount of effort for only a handful of hours to climb an aven. Although an account of this trip exists some of the facts were wrong and it has been my intention to write it up myself. Something I may well do with it in mind. Anyway the trip was a success with an unclimbed feature climbed and, i think, 40 metres ish of new stuff entered by two of us, and the possibility of more in the vicinity. Digging down there, esp trying something new is satisfying enough, even without finding new stuff. I was in a squigy wetsuit for 18 hours that trip! Those who've done it dressed like that will agree you're wearing sandpaper from word go.
If it wasn't for the two projects I've got on (Black Edge Choke and Syphon Passage) I'd probably be game for it. One of the reasons I chose Mossdale, aside from my favouritism for the cave, is the fact that every worthwhile digging spot is quicker to access than any of Langcliffe's. I probably wouldn't be digging solo as much down Langcliffe either, the objective hazards down there are significantly greater than Mossdale, and mainly relate to loose rock, the passing of chokes, and stuff that causes trips and falls..
Good luck with whatever you decide to do Alastair.