In reply to Got a job rob: Obviously the logic is that potentilly fun to be had as the slopes are more grassy and less scree covered so thinner snow cover required. A couple of years ago I kicked myself for not taking skis up into the Berwyns..... from below they looked quite bare but in fact there were great ribbons of snow blown up against the walls which would have been eminently skinnable.
The other area I have always wanted to get on is the ridge, whose name escapes me, which runs up into the Carneddau parallel to the road going up to the reservoir from Ogwen.