To ring or not to ring?

Own a VPI Classic 3 with the heavyweight clamp (as well as the screw on clamp), but didn't spring for the periphery ring in order to hold down costs. My lps are in good condition; so, not sure I need a ring for the sole purpose of flattening warped lps. I can always switch to the screw on clamp if I ever come across one. But some reviews attribute sonic improvements to the rings. IMHO the VPI ring is very pricey. TT Weights offers a couple cheaper alternatives. Question is - even if I don't have any warped lps, would I glean sonic benefits from using a ring? And if so, does it really matter which ring I purchase?