It just goes to show there are no absolutes. The Funk mat on my 301 and Salvation are trounced by a simple acrylic mat which in turn is bettered by a mat with a lot of upturned nipples!
These things are very specific to particular TTs/platters. Nipples are good though - at least that's true for the female variety.
TT 1 Trans-Fi Salvation with magnetic bearing + Trans-Fi Terminator T3Pro + London Reference
TT 2 Garrard 301 with NWA main bearing + Audiomods Series Six 10.5" + Ortofon 2M Mono SE
Digital Lindemann Bridge + Gustard R26 with LB external clock
Pre and Power Amp EWA M40P + M40A
Bass Amp & DSP Behringer iNuke NU3000DSP x 2
Speakers 1 Bastanis Sagarmatha Duo with twin baffleless 15" bass drivers per side
Speakers 2 MarkaudioSota Viotti Tower