Can anyone help me with the signal flow chart concerning the pro channel and the effects bin? In the Signal Flow chart, it appears that the pro channel and the effects bin are in parallel with each other. I would think the signal flow would be in series with the pro channel. Is this the case? Am I reading the flow chart wrong?

You right click on the PC and decide whether it should be post or pre FX bin. It is not in parallel.  

Thanks John. I see it now. Now it makes sense lol

Read this blog post on signal flow.
Its also documented in the help.