VTA?

I have a vintage Pioneer TT (PL-530) using a Grado Gold MM cart. The cart was installed by a dealer and performance has been acceptable. But, I am one to fuss about minor details. I have confirmed cartridge alignment (protractor) and tracking force with a TF gauge. The Pioneer table requires an overhang setting of 49 mm. Done that.

I am somewhat confused about adjusting the VTA. Seems that it can come down pretty much to trial and error until a preferred performance is obtained. And, VTA is most commonly performed by an arm elevation adjustment. The Pioneer has no such adjustment.

Am I just being too fussy about this factor since the Pioneer is nowhere near the sophistication and capabilities of more modern and expensive machines?