Transplanting seedling from potting soil to rockwool for DWC?

I've been sprouting my seeds in potting soil. I decided I'm sick of spilling dry potting soil everywhere so I went out and bought the stuff for a DWC today. My seedlings are in little jiffy cups. They are stretched with just one set of leaves each.


EDIT:

Forgot to mention I'll be growing in rockwool for the first grow. Hopefully I'll switch to clay pellets after that.