In that case you simply have your "solar meter" (where the controller does not have its own) on the output of the controller before the Trimetric's shunt.
The controller has simple LEDs to show condition. And they blink at various rates to indicate various things....Very confusing. Since I don't look at it often, I need to take the owners manual out each time.
I'm going to recheck my wiring and configure as you suggest. But again, I think your configuration will now tell me what is coming from the controller and not just what the solar panel is sending.
Once the battery is "full", the controller tapers off so it is not showing a true reading of the panel. I think reading the panels output would be great for orientation to the sun.