Help: Modern Stingray 2-band Controls

A friend of mine has a SLO Special with the 2-band eq. There are no center detents for the bass and treble controls. I read on musicmanbass.org that it is believed that the pre-eb treble control is cut/boost and the bass control is boost-only, but that is the only thing I can find on the subject.

Can anyone tell me what the treble/bass controls on my friend’s ‘Ray do? Are they both cut/boost or boost-only, or is the treble boost/cut and bass boost-only?

I tried to use the forum search, but didn’t find anything.