TT Weight Outer Ring vs VPI Ring

Actusreus: I have no experience with either product. I've just followed them with great interest. My thinking is that TTWs produced their initial products from copper because they felt it was the better material, although harder to machine. I assume now that copper is not cost effective for them to produce, hence the change. I give TTWs credit for the initial product.
VPI, I assume produced their ring with profit as the overiding factor from the beginning.
IMO.

Slaw,
You might be right. Certainly many factors and considerations go into making a product, the profit margin being most important to most, if not all, manufacturers. But I can say with confidence that the TTW all-copper ring did not outperform the VPI ring so I'd be skeptical about any such claims regarding newer rings. After all, it's an accessory and any effect on the sound in a well-balanced system should be relatively subtle to begin with. I'm sure the mega ring does what it is designed to do well. It might just come down to personal preference with respect to price, ease of use, and aesthetics.

I have a TTW copper ring; 600 gram one I think. I used it at the same time as a VPI ring. The VPI, being much heavier, flattened warps better but I thought the overall performance was fairly close. The VPI is quite heavy and harder to use than the TTW. Since I am a VPI dealer and not a TTW dealer I am not biased against the VPI, it does a good job. Either will improve the sound of most records.

I am having some significant woofer thumping issues with my system.
The problem is excentuated because my phono preamp goes down to very low frequencies. Older arc pre didn't do this. Records that appear flat have just the slightest difference where you can see a slight gap between the platter and the record. It reduces significantly as the arm gets farther into the record. This even pumps on flat blue note 45s - sped

I have two options - reconfigure the roll off on the pre or buy a clamp for the table

I have a galibrier gavia table. Triplaner vii arm
Doshi alaap preamp

Thanks for the insight