Most of them look too small to where they most likely don't have a developed root structure yet. Others are debatable. You can try to carefully slide one out of the cup to see if they have enough roots.
Im with you, how about some "Great White" in the solo's.
@Golden Great White mycorrhizae is more effective sprinkling onto the roots during transplant. Although, you can mix with water and then water your plants with it as well.
I can live with that. Hows your day going?