That entry point opposite the college where you say is better and nice and fast, that's the one by the bus-stop isn't it?
We used to go that way but with the mud in the dark tends to be horrible. That's why we have been going in the way we did last night, to do the more technical bit down that slope with the holes and humps, etc
With West Wood, a couple of us have used that ridge to go the opposite direction when just combining West Wood with Belfairs, etc. in a loop.
So we'd go in the way we did last night, and the route we took to get to the SouthWest corner, then turn back and take the ridge up to the North West and over to where we came in again..
Must explore the whole ridge one of the times..