@g11657 Great question - I've always wondered.
I have an MMF-5 with felt mat and was always thinking I'd might pull the center down too much and make the disc concave. FWIW, I always just go finger tight to make it snub, not finger tight till I can't turn it anymore.
I just bought a Herbies mat, but haven't received it yet. I'm thinking the platter mat will make a difference depending on how flexible it is.
I have an MMF-5 with felt mat and was always thinking I'd might pull the center down too much and make the disc concave. FWIW, I always just go finger tight to make it snub, not finger tight till I can't turn it anymore.
I just bought a Herbies mat, but haven't received it yet. I'm thinking the platter mat will make a difference depending on how flexible it is.