I think you done pretty well Brian. DB explained it to me something like this. As roads improved and autos improved You could cover more area in a given time. Thats when dry hose models was converted to wet hose system as customer wanted more fuel on board. But the sad part he never gave a time frame. So I'm not much help with your question. He would give me a answer that was basic food for thought. Sure miss that guy!

*Wanted Pierce Pennant Petroleum*