I made a rookie mistake, don't do this

OH, Yeah, simple inexpensive tools

to check/align tonearm placement, cartridge overhang, two null points, azimuth, arm heights/vta, true tracking force, true anti-skate.

The skills: give yourself a gift for life, try, practice, observe others, learn how to do this for yourself.

I, and I think we all should periodically re-test/verify tracking force/anti-skate, perhaps every 3 months. You will be surprised how small variations inexplicitly occur.

OH, OH, Yeah, Yeah: The most important, the Sound Received

Check your speakers and their placement in your specific space. Find best placement, toe-in, alternate toe-ins, and, if needed, electronic adjustment

a simple sound pressure meter; tripod; test tones (cd not lp)

pindac,

"The images were quite something, almost extraterrestrial, the Crud and range of Colour in the particulate, was akin to viewing a terrain not seen on Earth."

you get a literature prize for that one!

I made a Joke about dust mite crap, have a look at this short video

the photos pindac found from VAS