OK. I've been doing some serious listening to the Delrin Platter. First impressions are pretty freakn' awesome, I'm getting a totally different sound with it compared to the glass platter and Herbie Way Excellent mat. First off, everything is tighten up alot. More depth/better focused image. Toned down the highs quite a bit (first thing I noticed really) to the way it was before they seemed to be scattered around. More mid-bass. Bass tighten up some. Presentation has some more airyness to it. Also, the background got quieter it seems. I will be listening to this platter for quiet awhile now to see the differences on other LPs. So far, this is a BIG WINNER for me. A very nice improvement over the glass/Herbie combo.