I thought I read somewhere that it is designed to go as low as C, I was not expecting to get a low B out of it. I play with a guitarist sometimes who likes to tune down to D when we play Stevie Ray Vaughn tunes, just like Stevie did. So a D tuning could be fun and useful. If you have ever seen Michael Manring play, he has tuning levers all over his Zon bass. He always flips back and forth 6 or 7 times when he tunes. BTW Toshiaki, I like your pix in the background. I don't think Janis ever understood how pretty she was. Thanks for the opinions, James