That was the case with me as well. I have two now and prior to these I was the 'anti-preamp' guy ...
I'm not with you on the needing two pickups in series to cut through though and for precisely the reason you mention - this is me the sound guy talkin' ...
Sound checks are for getting the balance - once I have the balance - I don't f&ck with it...
So now that the band is balanced and the sound stage is set - I did all that with your amp by the way ... If the performance requires that I need a dramatic shift volume wise - I step on the boost switch for my Bassbone ... see there I have a control to determine how much boost this time ... I also use it for the second bank of tone controls so it's at my feet. I don't have to visit my amp except to turn it off after the set ...
I dinked about at length with a series parallel setup. I didn't like the volume jump and I didn't like the resultant tone - big tone change ...
Me - I get enough tonal and volume flexibility with the BassBone and with the Audere and it's z-mode. I really don't feel like I've fully grokked the z-mode, blend and EQ combinations yet. it seems like I can find something new every time I play with it ... mostly it stays flat EQ wise and I ride the blend and z-mode.
My advice - as you can guess - is get the Audere in place and then think about the S/P switch ...
wow man, I am almost convinced not to go series. Only difference between me and you is that I am still an anti-pedal guy