Records weights or pucks -heavy or light?

Thanks for the input. I checked with Sumiko and they said that using the Pro-ject Puck should not pose any problems, either with the motor or the bearing. Interesting since the puck is almost a 50% increase in the weight of the platter.

I've done some experimenting: I set up a mock weight on the turntable of about the same weight as the Pro-ject Puck and noticed no slow start or belt slippage. I compared the sound of this arrangement to the lightweight Pro-ject screw clamp, and also to nothing on the spindle at all. The screw clamp gave the overall best result in terms of clarity, bass and imaging. A bare spindle gave the weakest results and the mock weight of about 850g was a strong improvement over the bare spindle but lost out to the clamp.
I thought I might get some improvement of speed stability with the 850g weight(a 42% increase in platter mass), but that wasn't the case.

So now, I'm curious about lighter puck weights, in the region of 200-400g. I'll investigate further.

This is purely a matter of personal taste plus what your turntable bearing and motor can take without undue wear and speed instability. I have owned belt-, direct- and idler-drive tts. I personally do not like heavy center weights on any of them.

This is the one I use from TT Weights. It fits my needs to a tee.

Be careful with heavy weight clamp as it can affect your bearing. Your turntable's bearing only can tolerate up to certain weight including the platter. Check with sumiko first.

I know this isn't exactly an answer, but if I were you I would get the Pro-Ject Puck-It and be done with it. It's cheap, is neither too heavy nor too light, will look nice with your table, and - to me - feels of high quality for the price.

Yes, you'll just have to get some different ones and try them. For example, I haven't yet found ANY weight or clamp that doesn't squash the sound when used on my table. But every situation is different. After you play with this for a while you may or may not continue to think it is such a good idea. Then again, you may find one that puts icing on the cake.

I have had good luck with TTWeights; there are so many and so many different methods that it is hard to say anything general. Harmonix makes one that costs $3000; I have not seen one nor expect to although I am a dealer for them. If your table has a good bearing I would not worry about the increased weight of the heavy ones, the really heavy ones are a real handful to put on and off. At the low [ reasonable] end I would use heavy brass; higher up there are, as I said, many ways to go. I have wanted to try the Pierre Lurne but they don't answer emails at the address given in the online review, 6Moons I think. Bren is a good cheap one. I think it all depends on the individual system and your taste.