hard or soft copper line for a valley oil gallery bypass line?

@Newbomb Turk . This is a continuation of post #54. In this diagram representing an oil circuit being fed from two opposing ends. Where in the main oil gallery would oil stop flowing?

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I was going to post a drawing like that. It shows how ridiculous his understanding of hydraulics is. According to him, the oil will just sit in the galley going nowhere with 80psi pressure on both ends and not flow to the 4 leaks in the tube. He also denies that if you take away the front feed that there is no possibility of some of the oil running past those 4 leaks because there are 10 leaks at the end of the galley(lifters on the drivers side)
that are gushing oil and that number one main is the one that’s feeding 9 of those leaks.