The relationship of FIM and intranode pruning?

Note: for those who may be keepiong track, this is the second post I've put up in the gen. forum first before reposting here. Sorry. From now on I'll just post stuff like this in advanced...

It seems to me that by understanding the relationship between intranode pruning and the technique commonly referred to as FIM one could raise the percentage of FIM that generate multiple tops. I have read that If one prunes a top or branch end between the branch nodes that 2 branches form at the nodes but if one prunes directly thru the branch node then 2 or more branches will form. I percieve no realistic differnce between this and FIM other than that FIM is the action of performing an intranode prune on the smallest possible node. That said, I'm assuming the reason for this is because of the structure and cell type of this node zone. So the big question is, precisley where should the cut of an intranode prune be placed in order to insure multiple branchings. By understanding this one would be able to translate this knowledge thru magnification and experience into a larger percentage of multiple branchings from each FIM.
I am seeking articles, book suggestions or personal experience that may aide my understanding of the structure and function of the node areas.
Thank you.

Blaze's sticky on FIM suggests taking 80% of the top bud. Check it out -- good pic's.

Nonetheless, there's still some art and practice. I FIM'ed two plants and one made a bunch of tops, the other just kept growing straight. I noticed when I did it, the plant that "took" had two growth nodes packed together in the top bud. The other had elongated out of that state a little bit. I think that's the trick -- timing the FIM for when those two nodes are stacked as one, and then cutting just above the point where the upper pair sits.

FIM and LST are great, and pretty easy to pick up.

I FIM the FIM of a FIM and with LST, i have plants that have been vegging for 2 months and they have about 15+ nodes each and are only about 7" tall at the most.