The main reason for doing these things before you pan is to help you EQ and do other FX more effectively. Then once all the elements have their own sonic space carved out, then you pan wherever you want and it should be right on.
thats what i was thinking...so if its all in mono then the eq'ing and other things are done a little bit more efficiently...basically if i cant get it somewhat carved out in mono then i should sell all my gear and go sell tubesocks or something lol