The mat factors at work (dampening/muffling, isolating/static, soft/hard...) are complex (depending on the phono gear chain), one's use and to one's ear; subjective some.
So trials are still the best way to find out what suits best one ear and the phono chain. There is no universal absolute better when it comes to phono.
As about the thickness of the/your mat, don't forget that you can re-adjust your VTA accordingly if ever.
- Cart Denon DL-102 in bakelite Ortofon SPU 'G' type headshell
- TA SME 3009 'Improved' converted in heavy mass with detachable headshell
- TT Thorens TD160 'E' totally tweaked driven by an 'Eagle & RoadRunner' PSU & tachometer combo
- Matts top to bottom: leather, cork, felt & 12" vinyl
- Pre-amp 'Modulis' Isem
- Amp 'Exampli' Etalon 2x40W
- Speakers 12" Leak 'Sandwich' first generation creatively recapped