had a brief go at this today but sacked it off when it started to rain and also after i fell off with a heel-toe on the arete and took a nasty tumble down the gully beneath it. my advice is try it with a spotter.
Felt like it would be OK though, i pissed to get to that bad crimp, just hard to push that extra bit for the top. with the heel on the arete it maybe could be 7a+ or 7b but I dunno i'm not good at stuff with a deep lock or i'd have done it - plus its a bit freaky with no spot. I also tried it putting a left heel-toe where the left hand goes on Pooh, this felt like it would be similar in dificulty, so I suppose i'm saying that if it turned out to be an eliminate with no arete hold for the foot then its not the end of the world. i'm sure it would go at a similar grade facing the opposite way. if you could do one you could do the other.