The Quarryman, 1986 by ...... Johnny Dawes. The probable first one day ascent or all 4 pitches was just this past spring by Steve McClure.
Test report:
www.rockandice.com/news/1468-steve-mcclu...ng-qthe-grooveq

Mammut video with some coverage of McClure on The Groove pitch:
www.rockandice.com/videos?task=videodirectlink&id=226

Now that we've got all the possible beta, the bolts have been tested and proven, who's fly'n over?

Llanberis is a great place to climb. During my stay there (early 80's), I had an opportunity to have a conversation with the legendary Joe Brown and was awed by his humility. I also played a round of pool with Moe Antoine at a local pub just prior to one of his Himalayas trips, (sorry for the name dropping, but it was just too cool not to mention!).

To climb in a place with such an incredible climbing history alone was worth the trip.

yeah! now that is name dropping I don't mind. how was it getting used to that rock.

Guess it really teaches you to climb in control and press in/down, not pull out, when every hold is extremely suspect. When he pulled off that big chunk (@ minute 8 in the vid) his balance didn't even shift. He just tossed it down to join the rest of the debris.

GO

that video is pretty awesome, there is also this slate route called 'the very big and the very small' that sounded horrendously difficult.