I also just started with three seedlings.
One Strawberry Amnesia seedling is bigger than what I am used to from other strains. And two are tiny. For my grow, the variation is big.
So could be just luck of the draw.
@Med_in_Tropic, yea man. I increased light intensity, they responded well and growth is pretty nice now. Just repotted the largest. Stay tuned. I am following your grows as well and I am impressed. Good job. Can't wait to compare buds :)