Other poster mentioned record weight.
You said dummy, so in case you don't know, he meant one of these (other less costly ones exist)
https://www.amazon.com/Audio-Technica-At618-Disc-Stabilizer/dp/B00008B5DZ/ref=sr_1_3?dchild=1&ke...
Definitely get one if you don't use one, for any mat, existing or new.
You said dummy, so in case you don't know, he meant one of these (other less costly ones exist)
https://www.amazon.com/Audio-Technica-At618-Disc-Stabilizer/dp/B00008B5DZ/ref=sr_1_3?dchild=1&ke...
Definitely get one if you don't use one, for any mat, existing or new.