The mean might be closer to 155 but the 160 is close enough. Today I played a 1976 German pressing of the Doors that weighed 114gr and it sounded great to my ears . What weight record is your cartridge level ? SME like my ex-Rega have tapered arms making the use of a level arm " APITA " .
My thought on mats is that if I used one for lightweight records I would want to use a different weight for the rest of the records to keep the sonic consistency then that would open another can of worms ,Which design , do I try different materials etc .
So sticking to " My Compromise " locked in with a bolt VTA setting .
My TT has an acrylic platter with a lead mat !