MMT,
I don't understand the issue with "zoom creep."
In order to have good follow zoom, using a single ring zoom (zoom+focus), the zoom has to be EASY and smooth to zoom. I do not like a single ring zoom that has a stiff/dampened zoom, where I feel I am shoving the camera into my face when I pull the zoom ring back. And having to hold the camera or lens, to get the leverage to push/pull the zoom ring, against the drag of the zoom.
The cost of that is if you have the zoom pulled in and tilt the lens down, then yes the zoom ring may more forward. Though I never noticed if it did or not, because if it did, it did not bother me. But I consider that a minor cost, to get the smooth easy handheld zooming.
I guess we just look at things differently.
I consider EASY zooming a positive thing, for the way I shoot.
I have a 80-200/4 push/pull manual lens, that is stiff. I asked a tech about a CLA to replace the 30+ year old grease, to get back the smooth feel. He said that it was not economical, as he would have to disassemble the zoom to clean and relube it, then recolimate the lens :-(