I don't care what the rest of the forum says about you, you are a good guy in my eyes
LOL.. I could be wrong too, but I'm fairly certain that BD43 mod was operating the right side of stock setup correctly: low would be on in low setting and low would turn OFF and high would turn ON in high setting.
I can definitely see low turning off with my current setup. Light pattern completely changes (near part disappears). I also had to play with wires not too long ago (when one of the wires burned up under the tank and had to be tracked down) and voltage meter was showing that it would only complete circuit to ground and 1 wire in low and to ground and the other wire on high. Never to all 3. :don'tknow: