We all do it a bit differently though..I wait about 5-7 days and then begin opening the vents on the dome to get the plant "hardened off"..Gradually removing the dome and letting the rockwool cubes dry a bit to encourage the roots to seek water below..If anyone begins to wilt in about 30 minutes, I leave the dome off. If only one or two plants wilt, I put a semi clear solo over it, and usually they perk right back up. NOTE: Adjustments of times are needed, depending on strain, etc, as as well as your own RH and Temp..here in Nevada, my house is like 30%RH, so I leave the dome on a lil longer. If the cubes are always wet, the stems will rot and "damp off"..too dry and ..:banghead:
Success for me is great with a simple propagator and dome..My DIY aero cloner sucked (prolly was me..LOL) at making clones (from day 1 and always cleaned with bleach too) , and has been scavenged for parts..
As soon as roots emerge from the cube..into soil they go.