In reply to Dave Hewitt:
I hadn't intended for this to detract from what is a great wee film, and the discussion maybe would have been better on another thread, but maybe a little late for that now.
With climbing, I view it as first "recorded" ascent, as it's the first time someone has bothered to record it. I've recorded climbs that I suspect have almost certainly been done in the past, but as they hadn't been recorded, I thought fair enough, as there is a means of recording them. I suspect no one has been keeping track of Munro rounds by mountain bike, or indeed, by spacehopper, but I guess they would fall under the the banner of Munroists. It is obviously up to the individuals if they wish to record it with the "official list keeper" or not, which in the case of my cousin, he's simply not that bothered from what I can gather.
There was an interesting discussion a year or so ago on a Facebook group about who had done the first descent of Number 2 Gully on Ben Nevis from the top (rather than from below the cornice, which was done in the 1980's). It seemed like it had become "fact" because a pair wrote it in the CIC hut book after their descent in the early 2000's, and a liftie at Aonach Mor they chatted to sometime afterwards hadn't heard of any descents, so that was that. I seemed to be in the minority in thinking that this wasn't the most robust means defining history, for want of a better term. Turns out that it had been done a few years beforehand by another pair from the top, and that's just what's known about at this point in time.
Now it seems to have a different slant on it with some, and at least in part, claims are made to appeal to sponsors. Wild claims of first descents, to first descents without the use of a rope, to first filmed descents have been made! I'm "guilty", if you like, of filming my descents and putting them online, as well as publishing details of the lines, but am under no illusion that any of them are first descents. There's no way of knowing anyway!
p.s. what's the record for the longest time taken to complete a round of Munros. I started in 1983, and somehow haven't finished them yet, despite having less than a dozen to go for some time...