I think the bottom line is that the slotted part of the distributor shaft actuallt drives the oil pump. I really think that Tom Langdon's intent was to go to great detail to make sure that you had the distributor seated properly so that you would not run the engine without the oil pump being driven. Make the call but I am sure that is what he will tell you. I asked him the question of the 10 guage wiring. He said that was to prevent any false triggering and not an issue of current draw.