Hey there.
I was just reading your grow question on fimming bit because it's been answered I couldn't comment.
The general rule is to not do any hst till it is on its 5th or 6th node.
Have you tried mainlining. It's a great way to grow a plant. The only downside I can see is that it may take a little longer to veg but the finished results will make you not go back.. check out my diaries I have one at least and I'm vegging some that are getting mainlined. If you need any help I'd be happy to give it
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