If this is covered somewhere else, I couldn't find it so here it goes. I'm thinking about engine
movement when shifting from forward to reverse, or in rough seas. With a dripless seal, is leakage going to be an issue when the engine
shifts towards the front?(or when the prop is in reverse?) I'm thinking about installing a thrust bearing on the shaft and connecting the engine with a splined shaft. Is this necessary, or just something else that will fail at the worst possible time??