I’ve owned an M-series G&L for a couple of years, and really love it. A few weeks ago I bought a pristine used L-2500 fretless, and have been experimenting with all the different controls. It’s a keeper, but there are a couple things that seem to fall into the ‘I’ll likely never use’ category: Active + Treble Boost mode, and Parallel mode. I know one of the advantages of an L-series is the ability to go between parallel and series mode, but honestly I haven’t found a pickup/bass/treble combination, in passive or active mode, where parallel sounds better to me than series mode. So far every time I find a setting I like, I flip the parallel/series switch back and forth, and I like the series sound better. I know you can’t really say an L-series ever sounds ‘thin’, but to me parallel mode is the thinnest sounding of the options I’ve tried. Those of you with vast L-series experience, when do you use parallel mode? Is there some sweet combination that I’m missing? If it matters I have a fresh set of DR Sunbeams on it.