Qdrone: As you know, being an ET owner, (by the way, would you reveal which version you own please? I ask this for the following reason, the sonic return between the standard ET 2 vs. the ET 2.5 is enormous!), we have a scale with various visual increments. This is one way to eyeball VTA. I use this in conjunction with my precise set-up of my cartridge (in the "neutral zone" of the arc block adjustment range) for 180gr. lps. (This is the middle of the range I find best in my collection that mostly includes 120 through 200 gr. pressings). In this way of set-up. I can also visually align the top of my cartridge body with the top of my record weight. This allows two different but precise alternatives in which to gauge proper VTA. Also, since we have an (arc block) that by it's nature, tells one that there will be a fluctuation of "overhang" when adjusting VTA, that it is essential one set up the optimum way in my prescribed neutral zone to minimize this "overhang change" when going from lps of varying thicknesses.
The way you just described in which you adjust VTA is obviously from a different arm. I think you're getting off track from our original issue again.. this time it is with the ET arm. (The last time you moved the subject (Ric Ocasek lp) out of the equation to the Bowie.
My apologies again... for this I offer Jack Johnson "In Between Dreams" 1st pressing.