Oh my, oops! I guess I have not been doing the water ratio in the right way. I just spray my hose into a big bin of pro mix, and mix it around with my hand until it feels right. I wasn’t measuring at all!
I’m confused about the Saran Wrap - so you wrap the entire pot, including the bottom?
In the pic, the wrap is loose and you can see the soil, but on the other pots, the wrap looks pretty secure, showing no access to the soil (keeping bugs out and moisture in). Could you please clarify how you wrap it again?
I think it's helpful to measure at least a few times initially, until you get the feel, then you can go by the feel. Otherwise, there is a high risk that you will either under or over-water, both of which are not good.
Yes, I wrap the entire pot. So, I take a piece that is long enough to cover the top, then wrap around the entire pot, covering the bottom, and finishing covering the top again. Then, I cut a small hole in the center with a knife and insert the cutting. If I forget and put the cutting in first and don't want to take it out, I just cover around it.
In the pic where you can see the soil, I pulled the plastic away so you can see how easy it is to open the pot to add water. The plastic is fairly loose too, which means I get air exchange and evaporation going on, the soil is breathing, which prevents the formation of condensate and molds from growing. The plastic may seem like it's tightly wrapped on some pots in the pic, but once I open it after a couple of days to check on the soil, I will loosen it quite a bit. The idea is to let the soil breathe.
Once I turn on the lights, I sometimes get green algae growing on the top of the soil. To prevent that, I sprinkle some vermiculite.
This is just one of many ways to do it, though. I think the best rooting process is the one that makes sense to you, that you understand, that you can easily follow, that's fun, and that gives you the results you want. If you don't understand it, try to force it, seems too difficult or boring to you, it will rarely work.