In reply to Jon Read: Not unknown to happen (or even unusual among sponsored heroes), surely? Possibly your second photographer idea is most likely (though less parsimonious, assuming we both think the word has the same meaning), for the sequence of photos Dave would have had to be hanging on a rope, I would have thought, so that would make walking round the zawn so quickly quite tricky. It wasn't meant to be unhelpful, just seemed a fair explanation of the apparently chalked up holds given James's text regarding the difficulty of route finding.
Nice photos anyway, & a great ascent, I'd give a lot to be able to give the route a fair go in any sort of style, never mind 1st try on your 1st trip to Pembroke!.