I just found an August 30, 2010 post from Mike Pranka expressing the following on the use of clamps on the new tables.
"There's no need to use a clamp with the Amadeus. Clamps aren't 'good' or 'bad'.. it's just that some 'table designs incorporate them and some do not. Concern that a clamp is needed to flatten out a warped record is solved by the fact that the Amadeus 'arm will track any warped record you're likely to play. I'm told that Mr. Firebaugh once did a demonstration at an audio show of an early prototype w/ a (very) severely warped record and that it tracked it like a roller coaster.
The foam mat that comes w/ the 'table was chosen after listening to many different materials. With an acrylic platter, we found that we didn't like something too heavy or overdamped. The foam lets the music flow with it's life in tact. There's no doubt a different mat material somewhere that will suit a particular taste and system, but the foam one does work well and was far from an afterthought."
So there is no need or benefit on these tables.