If anyone needs a BT10 then I have one that will be for sale soon. My MIJ Squier Silver Series Jazz seems to have a very odd tuner, which doesn't match any of the hipshots.
When i used to have a detuner, I used it absolutely loads. Even managed to flip it during songs sometimes, there's a D > D# run into the chorus of Cochise, and I used to flip down to the low D, then flip it back up and play the chorus. Nobody ever noticed, but it made me feel cool.