Re: Fishman Fluence Modern Humbucker -any updates, it's been a couple of years
I'll try to answer as succinctly as possible, there are a lot of questions there.
First, there is a Classic set, neck and bridge, and there's a Modern Alnico and Modern Ceramic. (Most players will use the M.A. in the neck, M.C. in the bridge, but those are interchangeable) and then the new Devin Townsend and Steph Carpenter sets.
Let's focus on the Classic set. Each pickup has two distinct voices. That's where I think you might be hearing "classic" and "hot rodded". To describe the voices using other pickups you're familiar with, you have to first know that Fluence doesn't have to sound like "one thing" while trading off other things. You can think of it like segmenting off each characteristic. So an under-wound PAF has clarity and openness, which is lost when you over-wind a PAF. We can have the clarity of an under-wound, the output and lower mids of an over-wound, the sweeter top and clearer lows of an Alnico II and the punch of A5, whatever we want really. Whatever combination of positive features from different pickups, and the absence of any of the negatives that go along with them.
Classic Neck Voice 1: Vintage PAF, lots of underwound & Alnico II qualities, but at "regular wind PAF" output level. None of the bassy muddiness of a 59, not scooped like a 59 either. The clarity coexists with sweetness.
Classic Neck Voice 2: A sound not really obtainable prior to Fluence. More detail and presence in the high treble, for almost a single coil or acoustic type of pick attack, but also with even more low mids so it's smooth at the same time. Depending on how you play, it's either giving you very smooth liquidy solos with good pick attack, or chimey cleans.
Classic Bridge Voice 1: punchier, more overwound PAF voice, still with underwound top end clarity, a little of the '78 sizzle on top, too.
Classic Bridge Voice 2: Hot Rodded bridge pickup tone. The tonal footprint falls within the realm of my holy grail 1970's butyrate bobbin double cream JB. (Which does not sound like a new one, they're practically different pickups) but the attack and decay are all Fluence, as is the tonal density and more clarity.