Never trust a doctor who's plants have died.
Yea, that's what I'm getting at; those undifferentiated cells. They've got to be concentrated better in certain area's of the plant. Cutting slightly above like you say could spur their development faster.Totally. My last batch had almost no nodes in any of the rooters and 50/50 rooted quickly.
As long as you make the cut within roughly 1/4" of a node you are exposing undifferentiated cells.
I've been cutting lower which is obviously a worse area.
All the diagrams on intercalary meristem show it right were your saying. on the top side of the Y intersect.