Jason some have used Sandpaper or scraping method also.
Ive had tips rub up against the block fence where the tip got rubbed off that way and it branched, but personally I leave my babies alone.

By the way when I saw your post title "Pinching Plumeria" I thought it was stealing..lol "Pinching" in England can mean stealing..lol
Cheers thanks for the laugh.. :)

Also when you get caught. Example... "the Aussie got pinched"

I do not care to do that to force branching. Personally i have found those types of branching joints to be on the other side of ugly.

Oh also when you pinch or sand or scrape the tip its gambling as you never know you may only get one branch. Plus a single tip is more likely to bloom, so buy pinching you will not have inflos for a while.
Cheers

@ Kms2 - hahaha, I was afraid someone might try to "pinch" my 5" so i moved it to the back yard. I have no tolerance for plume burglars!

@ Freak - good point! I've only done it a couple items when things were out of whack. My mom had a plumie cutting where one side was going crazy with new growth tips & the other side of the y had only 1. I like to try to keep things balanced.

Jason