Im obsessed with Thomas Lang at the moment so i talk about him all the time, but his double kick is amazing! He uses accents, flams, 32nd notes and a heap of other impossible techniques to play double bass musically. U gota hear some of it to believe it!! Personally i think double bass is good but a bit boring after u hear it for a whole song. I get more impressed by a drummer thats not playing much at all and then does one crazy thing more than a drummer thats all chops and speed.