ok, well you kinda want the soil to be moist but more on the dry side as in being just watered, as the weight of the soil could break away when taking the pot off..
the more of a root ball you have the easier it will be to transplant as the roots are holding everything together, less root ball more chance of roots breaking off roots..
no matter what happens during the transplant just get it done as carefully and quickly as possible and than water her..
in videos the small seedling didn’t have a big root ball but i know what i’m doing, but i wanted to show you as his stuff can happen and it’s ok..
than the big one with a root ball holding everything together..
wash your hands before and makes sure everything is clean.