I am quite often in the area between Coal Aston and up through the Manch/Leeds gap near Crosland Moor and I always talk to Manchester, although if you can't get a word in put in the Manchester Listening squawk and listen out on frequency. The High Peak can get busy with Manchester big stuff at relatively low levels so they are usually quite obliging and like to keep tabs on whats in the area.
Note: Just watch out for the Class A at 3500ft!