All plants grow differently so there's no point trying to standardise. All of these were planted within three days or each other, some just took longer to sprout.
8 days progress, but there id 230w worth of led (110w quantum board and 120 worth of supplemental e27 led at 2700k/6500k) at full blast over them. Some of them on the right have only one set of leaves after a week, others are onto their third node, but it's hard as some of them varied a day or two in germ time. It makes it difficult to keep track exactly, buy after a fee weeks they are all usually similar