I'm one of the OG organic messiahs on the net, so I was hung up on cloning in soil for a long time.
I still think it produces the healthiest clones.
But it requires fresh finished compost to do well.
In a hydro situation, I tried every method.
Finally, I spent the 79$ on a 20 site Oxycloner. I put an extra bubble plate in it.
The amount of trouble I have saved myself makes it worth it, even if it didn't produce rooted clones predictably and in an incredibly short period.
What most people fail to realize is:
Cuttings feed like they are blooming, not vegging.
They are developing root systems. They need phosphorous.
When you load the cloner, set your ph at 6 and add micro, bloom, and Hormex.
One of the nutrients I use is Blue Planet nutrients. I add 5ml Micro, 10 ml bloom, and 6 ml Hormex. Keep your temps in the 70s.
I get roots ALL the way around the stem, like a clown wig, in about a week.
I scrape the first layer of bark off the clones in places at the base, to encourage root growth.
Make sure you give them enough time to fully set roots, but don't let them get long and crazy.