All good except there is really no compelling reason to pull the plug wire for the other cylinder. Back in the days of the carburetted dual plane V8's, we wouldn't think of pulling plug wires to make it run on 4 cylinders at a time. You just adjust one carb to make it run the best that will, then repeat on the other. The optimum adjustment is when the engine runs the fastest at idle, but readjust the idle speed as needed to keep it below 1100. In summer, give it another 1/8 - 1/4 turn richer so it will run cooler.
