Record weights 'n clamps: Audible improvements ?

I just picked up a Shun Mook record weight second hand, they don't often come up. This is the smaller weight, the stupidly expensive, not the insanely expensive large one. Second hand, it is bearable, just.
Opinions about Shun Mook seem strongly positive, except the price. Well, I have to agree, taking the weight on and off clearly demonstrates improvement in clarity and dynamics. You don't have to listen hard to hear them. It's still insanely expensive new, mind you.

Clamps are great, so you don't have to waste money on 180 gram pressings. That's the biggest scam going other than labels cutting vinyl using digital sources.

Some of the best recordings I own are classical recordings such as DG cut on fairly thin vinyl.

Hard to beat the Clearaudio twister clamp, imo. I prefer it to their more expensive complete alloy models. Simple twist and it locks down the record. It's a great complement to an outer ring weight.

I just received my TT Weights Super Ring (675 grams). It deliver's big time. Dramatic improvements in soundstage depth and air along with much firmer grip/clarity on the bass. I had no idea what I was missing. Highly recommended.

I think the value of a record weight will depend upon (1) the state of one's LPs, if one is using the weight to flatten them, (2) one's personal taste in listening (I like a "lively" sound, myself), (3) platter material, (4) turntable type (belt vs direct vs idler drive), and (5) probably tonearm and cartridge as well.

So far, I have never met a turntable weight that improves the sound, using a Notts Hyperspace, a Lenco with Boston Audio mat, or a Kenwood L07D with its stainless steel mat. The weight was least harmful on the Notts, but not that beneficial, either. On the L07D, the original Kenwood record weight squashes the life out of the music, IMO.