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Oh, I see, it's a toothpick... I thought it was a leaf stem sticking through the main stem, at first.
Toothpick... better than a nail.
Do you think this helps the yield on that branch somehow?
What you're doing looks like extreme form of stem breaking/repairing.
That's a cool technique
Where did you read about this??
Cool idea!
What part in the plants life was the tooth pick inserted?
Did you notice any adjustment period with stunted growth or anything like that?