fished for the carp at wyreside, but not the pike.
Have you tried Rivington res and Anglezark near Chorley?
not too far from you and well worth a look.
Me and the missis have had up to half a dozen apiece on lures, up to mid-doubles. But I believe they have been caught mid-twentys, and its the type of place that will definatly throw up a surprise one day.
And don't worry about getting a peg. all three lakes are big and you'll proberbly have them all to yourself.
P.S. day tickets from the two tackle shops in Horwich.