Ok, so I have had success putting them root down.. its what I have always done. Im no expert but ive grown a couple times with shitty grow rooms, and they have always come outta the ground. But, I was reading a post the other day that said to put it root UP, because the root curls , and it will only have to curl once to make its way down. So instead of having the root down , where it wastes energy curling twice, once towards to "top" of the seed casing, and then down again to the bottom of the pot. u put it root up so it only curls once, downward.

is this true?

Im starting to think its true, because after looking closely at a germinating seed, it down infact look like its curling towards the "top" of the seed casing.

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Everything I say is based on fiction, and all pictures were taken from the internet.