So i checked the rear diff fluid level in my 2020 pro-4x. Put my pinky in and it was way down in there.my pinky, past the last knuckle, is about 1" long. The specs on the rear diff have the full line being anywhere from 1/4: down all the way up to some smaller distance from the bottom of the fill hole. I put in enough where i was getting fluid on the tip of my pinky. which in my estimation is about 1/4" down from the fill hole. Each diff's check procedure shows it's value below the hole and the word nominal above it. So can we fill these things to the bottom of the hole? Seems silly that you have to measure, somehow, how much is in there. Does the FSM inspection page mean that it shouldn't be lower than that? That you can fill to bottom of the fill hole but keep it no lower than the value they list?