Using the Q switch is kind of tricky and must be used along the Filter Pots.
They are just a boost at the cut-off frequency you adjust at the Filter, it changes the character of it. Since all PUs have a unique Cut-off frequency and some have more or less peak at this particular point (due to their materials and construction methode), this is an Alembic's ingenuous attempt to mimic all possible PU tones with their Eletronics.
Try using just the Bridge PU first, moving the Pan Pot to solo it. Then you should use the Q switch at its maximum boost to hear what it does more clearly. Now you must try the Filter control while you strike a String. If you make it properly you may hear some Wha effect.
You didn't need to always use the Q switch on, some times flat is enough, but this will shows you what they do with PU's spectrum response. Try possibilites at Bridge PU fisrt, then with the Neck's, before mixing them together.
I do my main Tone adjustments just blending PUs (but I have a Rogue, that is considerably more simple in its adjustments possibilities) and use the Q switch to put just some sparkles at some songs. Usually I use it as a way to make it sound more articulated, pushing somewhere at 800~1.5KHz (determined by how much space the other Instruments left me).