Just had to jump in to defend West Pennine. Being another windsurfer from the hidden gem of the windsurf world... Stockport!!! I was a member at West Kirby for a number of years and now a member at West Pennine. Cannot fault WK for venue as long as there's a westerly or southerly in the forcast... as Shawn says its pretty perfect, but at WP you can sail in pretty much any direction, as long as it is not dead northerly. The conditions are pretty good for an inland location (check out youtube to see how good it can be:
http://www.youtube.com/watch?v=WUGJLq5Qqi0). In SW, W, NW and E, the wind is pretty consistant. WP is a lot closer for me (40 mins to WP and 1.15 hrs to WK) from Offerton. £10 a month membership is a bargain price too for unlimited access 27/7! WP is definately kinder to your kit too! Another factor for me now is WP is 54 miles round trip away & WK is 110! Big saving on juice! I think we should have a Stockport raid on Audenshaw reservour anyway, as I think that could be a cracking local venue. It is strictly off limits according to United Utilities though... shame.