As this was brought up in another thread ……
the “advantage “ is creating a early root mass then transplant into larger
or final container. The solo cup start as
@twentyeight.threefive showed , allows root mass to throw roots in multiple directions instead of taproot racing to bottom as with straight to pot plantings.
Autos are
always overthought …. you can’t do this or you can’t do that. All bro science bullshit .
You can transplant them , top , FIM and even. Super crop them. I have run more autos than i can remember and do these things constantly with no issues.
This diagram should explain it …..
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