My cloning method is unconventional, so far it has worked for me. It is a variation on the clone in cup of water method.
https://www.growweedeasy.com/how-to-...-of-water-easy
For each clone, 2 solo cups, one clear with holes in the bottom, and one red on the outside. I put them together, add 3/4 full of coco/perlite, tamp down, add week 3 nute solution with additional calmag and the juice from a hunk of aloe leaf, flood the coco for 5 minutes, remove inner cup and drain the water, punch a hole in the coco, prep the clone with a fresh cut, scrape on the stem, dip in clonex, then plant in hole, pack coco, add nute solution to bottom cup enough to flood the inner cup (think miniature flood n drain), then put them under the light, plastic baggie cut into a sheet on top in the beginning. When roots are visible through the inner cup, transplant into final pot with out delay. By flooding the cutting in the coco it is like being submerged in water. As they get older, i will remove the outer cup and drain, let sit, then refill. Gradually increasing the drain time. They usually show roots within 12-16 days. When I grow the manifold using
BU2B 's PPP method , I will remove anything that I will not need in the final plant as soon as possible. My shoots are never 7 inches long, more like 2-5. What you see in the pix I did today. I have found that if they survive the next 2-3 days with out wilting to death, they will be ready to transplant in a few weeks.
The johnson method would be measuring the with of the stem...