I can't remember seeing any comments from users of these pedals, and in a search all I could find in the first few pages was their more commonly-used pedals: the Decimator from ISP and the compressor, chorus, and EQ from Carl Martin. But ISP has two dirt pedals: a "blues" overdrive and a distortion, and Carl Martin has put out well over a dozen different dirt pedals over the years, covering the full spectrum from light drive to blasting fuzz. Have any of you owned or tried out any of those pedals? Any of them especially bass-friendly or unfriendly? Your thoughts on any of them?