Is extremely accurate "VTA" adjustment necessary?

If your records are of different thinkness as mine are, set the TT up for 180 gram records. It will be close enough for most all your records and best for what is being pressed for the most part now. I tried at one time to adjust for different thicknesses and it drove me crazy.
IMHO be less anal and enjoy the music, this is a hobby not a job.

Its with some trepidation that I venture into these troubled waters(sounds almost like S&G!). But what the heck I have only one lifetime and only one neck to loose!!
There are some pretty asute observations and comments in this thread. My comments/observations are based on the Triplanar 7 U2. I have no experience of any other tone arm with a VTA tower.
Two facts are seemingly incontrovertible/indisputable :
1. Raising/lowering the VTA tower clearly influences the sound;
2. Adjusting VTF also has clearly discernible sonic implications.
Last night while listening to a reissue of a Parlophone pressing of the Beatles - Help, there was a bit, actually quite a lot of shrillness in the upper frequencies.It was not just irritating but almost unplayable. I turned the knob on the VTA tower clockwise 3x lowering the tower and wow the shrill bits were gone and the record sounded just right to my ears. Out of curiosity I checked the VTF with
a digital gauge( the kind that retails for USD 139 at some online stores).The VTF setting on the Transfiguration L Orpheus is normally 1.910 gm. The reading after 3 clockwise turns of the VTA tower was 1.956.At this stage my evil mind was getting hyper. Without altering the VTA setting I adjusted the VTF back to the normal 1.910. Guess what, the shrillness and upper frequency sibliance was back.
The Beatles Lp is one of those real thinny ones, 120 gm or so.
I then turned to a 180 gm lp - the new Dylan - Through life with you( sounds like Tom Waits goes to Vaudiville though there are some half decent tracks, IMHO). The VTA setting remained constant, ie with the VTA tower lowered. Despite all the nasal overtones the Dylan album was sounding real good.I then reverted to the original VTA setting by turning the tower settings anti clockwise 3x ie increasing VTA. I began to loose some of the upper frequency detail.Separation between instruments was blurred, in short the music was less enjoyable.I checked the VTF at the new VTA setting and it was about 1.880gm.
This was not a scientific experiment but merely a report on some spontaneous and off the cuff attempts to co-relate different VTA and VTF settings with changes in sound quality.
IOWs with the 120 gm lp a higher VTF was called for and the reverse with the 180 gm Dylan lp.
So whats the point of this long and possibly boring rant : simply and IMHO, with a Triplannar changes in VTA settings are actually mico metric shifts in VTF.To my mind the geometric evidence in the original TNT article is pretty solid.
Sorry to rake up a cliched issue but I guess being anal has some upsides !!
NJoy

Sunnyboy, your experiences are quite common. I used to have the Triplanar setting on each of the records I most commonly listened to. Now with my Shindo arm, I know them by changes I feel in my thumb as I raise and lower the VTA.

Many don't want to bother and thus argue it doesn't matter. Let them think so.