Yes the bane of DI ers everywhere. A microfiber surface with a soft underlay.Now I am not talking about those closed cell foam underlays where the dice bounce off the table.You do not play them period Those that are playable or look playable on a normal toss the sharp edges of your dice catch in the underlay and all hell may break loose.Am I right? I use MP' s low, slow, and easy toss. Had great success with that 5 pointer.Why does it work? Mostly because the dice seem to glide on the micro never digging in and catching.Try it and see for yourself.