Will SME-V, etc benefit with non-stock alignment?

Hi,
it was suggested by some most knowledgeable member(s) on the subject of tone-arm alignment, to start a dedicated thread for 'fixed' stylus-to-pivot measurement arms.

To my knowledge those would be ALL SME arms, as well as ALL Linn arms -- there might be others.

The issue in particular is the method of overhang adjustment by moving the pivot (bearing arm post) a la SME to accommodate slight variations in cart design. Linn does not even offer that (go buy their cart(s), and get a life :-)

In the case of SME, the expected mounting hole to stylus tip distance being 3/8" or in more 'current metrics' 9.52 mm. (sorry not US quite as yet, i.e. both are valid)

If a cart has this design criteria, AS WELL AS! the cantilever in the centre AND STRAIGHT with respect to the cart body / mounting screw holes, and more recently all with a tapped thread in it, they would HIGHLY qualify, or?
BUT, how do you see, or know this is the case in the first place, when purchasing a cart?

Given ALL is right-on within spec. you then are 'stuck' with the alignment that, e.g. was decided (for you the purchaser).
As soon as you'd like to try some other alignment scheme, and there are some: Löfgren A (Baerwald) -- the SME point of view/choice, Löfgren B, Stevenson, plus in fact you may make up your own, that may be to your liking. BUT NOT with any of the 'fixed' type arms, since it'll play havoc with the arms intended alignment geometry. (Ask DerTonearm if you don't believe me. He'll give you the low-down right to the 100th of a millimetre!)

So far, so good. You can go to one of the expert template makers, state your case, give your cart and arm parameters and ask him to make on for you. 100$ ---- to 500$? somewhere around there.
BUT WICH alignment then please?!

One you think is better? The same? Why bother for the same?!
And IF different, will it actually work for you?

Well, if not, go spend some more 'greens' on the next try?

Of course if you are aware of these issue, you just go and buy another arm, right?
Hallo, but what about synergy for SME decks, ditto Linn decks and arms?

So hope to have made the point sufficiently clear. So let's see what we can learn, that we do NOT know as yet.
Could get interesting, I hope so.

But please keep it informative and don't come tell us a dentists drill will be a better choice than XYZ tonearm choice.
Thank you for reading,
Axel