Rapid Rooter plugs are the only way I have been able to reliably clone.
No dome, no misting, not much fuss.
I make a fresh cut on my cutting.
Paint bottom inch with Clonex (or any clone product) and stick it into the RR plug via a fresh hole poked into the plug. Plugs go into small six pack holders that perfectly fit the plugs, so six in a small footprint.
The important part is to dip the holders into water twice per day.
Place under 24/7 fluorescent and heat mat and wait.
So long as the plants stay green and healthy and the plugs stay wet they eventually throw roots.