I put a switch on the fuel pump on my aircraft based on generalized Rotax advice that turned out to be inappropriate for the tank location on the RV-12. So the pump is always on when in flight.
But it is nice to be able to switch it off and not have to listen to the pump chattering away when I have the master on in order to fiddle with the avionics.
You may want to consider to pull the pump fuse when working on your avionics.
I recently installed the upgraded pump and also added a pump switch and custom labeled bezel and also better marking for the fuel valve.
I like it.. Where did you get the switch and bezel? Nice work..