I have a Hipshot D Tuner with the two stage lever on my P Bass. Lowest note is C, the middle one is D. This middle position wouldn't hold. The slightest touch would make it slip out of position down to the C. I called Hipshot and the only solution they had was to change the brand of strings(which made no sense to me). So since there was no help coming from Hipshot I was forced to try something to make it work. I ended up filing done the lever a bit where it makes contact for the middle note so that the point where the lever comes to rest against the stop piece is flat, not rounded( if that makes any sense).It's a little hard to explain. Has anybody here had the same problem? Did you find a solution? In case you haven't, I think what I did is definitely helping.