You think it's an advanced technique? Just thinking with transplant shock on a sick plant transplanted poorly...??.. for folks that don't communicate with their plants that well.??I used to to do ... straight to pot but most the root mass circled the bottom as primary root hit bottom instead of root out laterally. So I begin all in smaller containers to start the root mass then transplant as a PLUG into its final container.
Sometimes I make small holes in sides to provide air pruning like an AirPot.
This graph explains it.
It shows straight to pot vs. simple transplant.
View attachment 4317087
What size pots?in 7 years i have not once repot my autos, they start in the same pot they finish, and the roots are everywhere by the end , i wouldnt pay too much attention to everything you see and read.
I haven’t ran my autos yet but I will do almost the same thing with them as my photos. Solo cup root out, 1g pot root out, then to the 5g cloth grocery bag until harvest. But for the autos I will skip the 1g and go solo cup right to the 5g. Hope it works!