Tell my cuttings that... this is what their homes look like 24/0
Root nubbies form within a week and actual roots are visible outside the RR plugs by about 10-12 days.
IMVHO, steady, controllable temperatures are more important than a 'night' period.

Edit: The clones in the first pic are fully rooted, potted-up in small pots, and hardened off. That's why the dome is off.