I'm having an Aguilar OBP-3 installed in my Stingray 5 bass. As you may know, the mid-control on this preamp has 2 selectable frequencies (400Hz and 800Hz), and is both cut and boost.

I'd like to control the mids using a push-pull pot, where "push" and "pull" control the frequency (400 v 800). The pot required to do this is:
* 50K
* DPDT
* linear taper
* center detent (since both cut and boost)

The closest I've come to this is a Mouser pot which lacks a center detent. Anyone know where to get one of these things (no luck so far with Allparts, WDMusic, Warmoth, EMG, Stewmac or CTS), other than having one custom-made ($$$$).

Alternatively, anyone know of a creative way to modify a Mouser pot to give it a center detent?

Thanks,
Greg