This is a classic granite 8a roof and is on the UKC logbooks.
Hamish Potokar (age 16) managed the ascent on his 3rd attempt on his second session on Sunday 26th August 2012 and made this short video:
James Squire (age 15) managed the ascent on his 5th attempt in just 20 minutes on Friday 31st August 2012 after previously trying the climb almost a year ago.
You can check out his blog here: www.beastlysquirrelblog.com
James Squire is sponsored by La Sportiva