For home study I would suggest-

[u]Aerodynamics first[/u]. Most of the concepts in CPL aerodynamics have been introduced in your PPL study.

[u]General Knowledge next[/u]. For the same reason.

[u]Performance next.[/u] Performance is really just applied Aerodynamics and General Knowledge in the real world.

[u]Meteorology next.[/u] This subject covers the atmosphere, hazards and the rules for flight planning.

[u]Navigation next.[/u] The basic principles and rules from Meteorology are fundamental to navigation and flight planning.

[u]Human Performance[/u] next. This subject takes a close look at the pilot's physical and mental limitations and performance.

[u]Air Law next.[/u] The rules and procedures from Meteorology and Flight Planning and Human Performance.

Thanks Bob, just passed Aerodynamics at 80%, 4 weeks of home study