Yeah i am doing it exactly how i should i think, volume on bass at about 1/2 with eq off, set at 440hz +0 C, noise filter and input boost activated, either coming straight from my bass or from my mixer, and its just hopeless on the B and E, and as i said can't really detect the other open strings. Its fine for tuning at the 12th, particulary harmonic, but thats no good as i know my intonation isn't perfect.