You want to replace the original mat with something that's same or very close in thickness. Otherwise, you're changing VTA, which may be more audible than the mat material's impact. On a high quality table, you should hear differences in all of them, but I can't say if that will translate with your PL-530.
Searching archives you can read about the nature of the changes from mat-to-mat. There are a number of them with strong advocates. Cheers,
Spencer
Searching archives you can read about the nature of the changes from mat-to-mat. There are a number of them with strong advocates. Cheers,
Spencer