Stylus Force Guages - why extreme accuracy?


I am under the impression that, when setting up a phono cartridge, one sets the tracking force to the manufacturers recommended force, and then dial-in the final force by ear. If that is the case, then why are extremely accurate electronic stylus pressure gauges popular when the force is most likely going to change during final adjustment by ear? The Sure SFG-2, costing $25, has worked great for me to ball-park the initial tracking force before final tweaking. So, what benefit is the Winds ALM-01, costing $800, going to provide? Is it important to set the initial force to within a tenth of a gram, when that will change during final tweaking? What is the procedure those of you who own expensive gauges use for final adjustment by ear?
seasoned

Showing 1 response by maclogan

An "audiophile" friend was amazed at my inability to hear the results of minor VTA adjustments. He attended my house to demonstrate, fiddled with the adjustment ring, and then proclaimed himself satisfied that he had found the optimum VTA. We listened for a while and then I noticed that I hadn't locked the adjustment ring in place. "You may have moved it a little when you were changing records", said my friend. "I'll have to go through the adjustment procedure again."

This time I stood at the turntable doing the adjusting while he listened at the other end of the room. But I never moved the ring - only made a pretence of doing so. Nevertheless he "heard" changes, rebuked me for my deafness, and was sure that his preferred position was identical to the one he had determined before.

I don't feel so bad about my inability to set VTA by ear any more.