IMO, the valves creates an unnecessary constriction to the oil flow during draining. Judging from the picture the hole has about 1/4 the cross section of drain pan hole. The faster the oil can flow the more sludge it can carry.

One touch operation doesn't sound like a selling feature. I don't want my oil to drain out of my engine with just one touch. I'd feel safer knowing it took a few deliberate steps before it came out.

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Wake up every day that would be a start.