I have been flying APM colours since it was created. By far the majority of my money was made doing RP runs with it. AP Manufacturing is the multi-national engineering group that builds the ships and weapons for BHG. Myself, more specifically, stuck to one very specific aspect of the shipbuilding: Engines. I did the simple Berylium/Engine Componant run over and over again in 4.84 without changing, many Corsairs got rich from me.
With 4.85's release I was able to narrow my RP field of expertise to building BHG Capital Engines/Powerplants and broaden my route at the same time. Here is the route my APM always does without changing: