I built a cloner in a tote. Uses an aquarium pump with small sprayers.
The cuttings go in neoprene collars.
I cut the leaf tips a few days before I take the cutting. Cut, immediately dip and place in a cup of water...faster is better so you don't get air in the stem.
Transfer to the collars and in they go.
The pump/ sprayers are on a timer, 15 on, 30 off...they spray the ends of the cuttings from underneath.
I've switched lights...using a cheap low watt blurple at the moment...3' up on 18/6 schedule.
I pH my tap water to 6.0. it comes out at 113-115 ppm.
No domes, no misting. I'm in the desert, my RH sits at about 20% every day.
I get roots in 7-10 days on average...sometimes a bit quicker but not usually. I check pH daily..
95% success rate.