Phantom Supreme to 4Point-14?

Right, in the end it’s largely guess work, probabilities, and subjectivity. And our approaches are not so dissimilar. I know my VTA dial settings for 180 gram and 140g LPs; I split the difference for 160, subtract that split from 140 for 120g, add it to 180 for 200. It’s a momentary mental exercise. I can approximate the weight of the LP by its flexibility via a quick shake when I take it out of the sleeve. It takes all of three seconds to set VTA with most of my arms, and I do so before I play the LP. None of this is rigorous scientific practice, but its close enough. Then I sit and enjoy the music. Like you, I’ll tweak it if it sounds off, but I usually do not need to. If I want I can check my work on my 2 Grahams because they have bubble levels. Most of my carts like the arm level--or I’ve conditioned my ears to believe that. There’s actually very little fuss in my process, and it lets me relax into the sound. As I mentioned, though, if I forget to change, I usually notice.

That hypothetical 92 degree ideal setting is not even that.  As the Wallytools people point out, one has to set the 92 degrees when the stylus is actually dragging when the record is in motion.  They utilize a special microscope and take measurements with the surface in motion. 

I prefer setting VTA by ear after first getting the body of the cartridge close to parallel to the record surface.  I too utilize a typical thickness record and don't bother to make changes for different thickness records.  

There is one extremely rare version of the linear tracking Air Tangent arm that provided for VTA adjustment on the fly using remote control--that would be the ideal way to set VTA for each record (there is a numerical readout, so one could record the number for each record once that is done by ear).  I am actually glad I don't have this kind of capability because I really don't want to bother with that kind of fiddling around.

@larryi , I think the 92 degrees in motion is why Fremer sets his to 93 static. Your approach to VTA, like lewm’s, is utterly reasonable. As an experiment, I’m going to set my tonearm to the average record, which in my scheme would be 160g, and see how long I can go without changing it. Might take me a few days to fully detox! If I can live with it, the door is open to the 4P-9 or even, gulp, Safir!

The largest sonic change I've heard in all my time with analog is when I installed the Safir arm, it wasn't subtle it was jaw dropping. Yes cartridges have their flavor, tonearms have had their flavor and even the dozen or more tables that I've owned all had their flavor but nothing could have prepared me when I swapped my 4Point11 for the Safir. At least in my own experience. Although out of curiosity I've ordered a CS Port https://www.csport.audio/products/products-turntabletat1m2-en.html table that just cleared Customs and should arrive in the AM. Yes I'll be using the Safir on it, very excited! 

Setting at 93 degrees static does make sense--drag would lower the actual angle in play.