I think anybody's video's online are just a general guideline for those not experienced in cut & buff to get some sort of starting point from.
With sanding and polishing any sort of material, anything good enough with good enough skills & effort can get a decent result.
Then between wanting to get better & faster and having spend multiple hours of your life making stuff shiny, minutes & small amounts better turn into hours of your life & better products & procedures begin to pay for themselves.
One little tip I'd like here, got a bit of aging products starting to get a little dry I need to use up before replacing all of it. Anyone know of something good to rewet compounds that are still good, but drying up a little? Water works somewhat, but not good enough.