Record weights what type would be good for a Luxman PD171-A

Another vote for Stillpoints LP1. It  has weight to it but it is also designed to stop the vinyl from vibrating from stylus friction. The result is clearer sound with less distortion in the highs. It replaced the VPI record weight that came with the HRX.

Went to my dealer and he lent me a Clearaudio Quadro Clamp (low version) for my Luxman TT. Don’t know why it’s called a clamp as it just drops on the spindle, no tightening. However it worked out great. Better bass and the overall performance was dynamic and lively. It’s a keeper. Anyone else have a Clearaudio clamp?? Checked the strobe on my TT and the Quadro clamp didn't affect the speed at all.

Late to the party as it seems you have already decided.

But I have been using the J.A.Mitchell clamp for years with great success.
You get a couple of different thickness felt washers to go under the record and the clamping takes 3 seconds,hard to get it wrong or to be considered a chore.

It does also help with warped records a little.

Never contemplated anything else since, $50 from eBay I think.

However Slaws post here is definitely food for thought and maybe worth some trials as I use the clamp in conjunction with a 3mm Achromat.
Might have to try combos of mats and weights.( have a number of both from various tt project over the years).