Hi Dinster,
I have spent a lot of time with various record weights. My finding is the same as yours having nothing to do with materials used or brand. I have found that weights in general shift the frequency band down a bit. So weights tend to dull the upper frequencies and accentuate the mids and low frequency bands. They also give you sharper images and cleaner leading edges. That's the good side. The bad is that they narrow the soundstage. I have settled on no weight and I'm not alone if you research the subject on the "What's Best Forum." Another idea is to try the Oyaide Record weight. It comes in two weight classes and they are adjustable giving you the option of listening to the best weight. They are a bit funky looking but they work really well. One other idea is to buy the Oyaide rubber mat which is only $100 and will increase your fidelity greatly.
Have fun!
I have spent a lot of time with various record weights. My finding is the same as yours having nothing to do with materials used or brand. I have found that weights in general shift the frequency band down a bit. So weights tend to dull the upper frequencies and accentuate the mids and low frequency bands. They also give you sharper images and cleaner leading edges. That's the good side. The bad is that they narrow the soundstage. I have settled on no weight and I'm not alone if you research the subject on the "What's Best Forum." Another idea is to try the Oyaide Record weight. It comes in two weight classes and they are adjustable giving you the option of listening to the best weight. They are a bit funky looking but they work really well. One other idea is to buy the Oyaide rubber mat which is only $100 and will increase your fidelity greatly.
Have fun!