180 gram?

Lots of discussion if you do a search. Consensus seems to be that it's highly variable due to differences in QA/QC, provenance of the master, vinyl formula, etc, etc. A member with a lot of knowledge about polymers posted recently that one could even make an argument that the thicker LPs are MORE likely to warp.

Prior we didn't give a fluke about record weight, but lots of good quality pressings especially classical had been on heavy vinyl reaching 200g. What I noticed that noise floor on heavy vinyl is lower which is the crucial factor for classical music. For R&R it's all subjective and more would depend on mastering quality.
For me etched letters RL next to printed STERLING on the dead wax is more preferable than 180g.

Thanks Czarivey,
could you elaborate a little on this "RL" Sterling?