The way you have it wired will work. The proper way would not have any wires jumped to the large stud. This is however a common practice. Usually the light circuit will drop the voltage to the terminal on the alternator. I dont think it matters. I have run 12 volts to mine for several years. If anything I think it would damage the regulator as that is what it is connected to.
Artificial Intelligence is no match for Natural Stupidity