Turntable set up- How easy is it

Papermill is correct.

But, as you listen, you will find that the initial adjustments are only good approximations, and that magic happens when you get it just right. So watch the pro and ask lots of questions and have him teach you to do it. That means, try each procedure with him present. Make notes. Then, when the spirit moves you, consult your notes and make tiny adjustments in each direction and see if there is an improvement either way.

Then consult a psychiatrist specializing in audiophilia.

Inna, according to Soundsmith, the mechanism of cartridge break-in is rather disconcerting.

They say that a cartridge breaks in by twisting its guts to accommodate an imperfect installation. Certainly my Koetsu has not changed much, except for the "magic" when I got the final minuscule correction just right.

If Soundsmith is right, and they are, after all, a cartridge manufacturer and rebuilder, then it follows that adjustment should be continuous until you get the magic.

I was brought up on the conventional wisdom too - 100 hours or so, but I never did understand the mechanism. It sounded a lot like a practice from WW2 where riflemen from US and UK would exchange a single round (.30-06 and .303), fire it, and find that their rifles shot better.

Then I heard the word from a manufacturer. Who would know more about cartridges breaking in than a manufacturer? Only a rebuilder. And Soundsmith is both. So I accept their considered opinion until I have very good reason to change.

Fiddly, yes, but worth it in longevity, I think.