In reply to Adam Lincoln:
As someone who once spent 5 days on The Zodiac, this is incredibly impressive. Climbing a 1500' VDiff in 2'30" would be beyond most people...
I think this approach is a worthwhile goal in itself. It's a terrific feeling climbing fast and efficiently where you might otherwise labour for days. I do think it's a useful pointer to what will be done in the big hills. The specialised techniques are specific to well known routes with bolt belays but the fitness and confidence levels are transferable. Working a boulder-problem with spotters is very different to onsighting trad, but most people would think the former helps the latter.
These style of ascents obviously involve a certain amount of pushing the boat out. Essentially you have to be happy soloing at the grade you are climbing. The rope is there to prevent utter disaster, but long falls happen quite regularly and there have certainly been broken limbs. It’s a bit like the hard grit scenario: the medium is predictable, it’s fairly obvious what the risks are and the practitioners are generally pretty competent but one day someone will get seriously hurt.