Honestly if you find it sounds better as a passive, save yourself a bit of money in and put a capacitor and resistor across the pickup to reduce the highs, and jobs a good one
Not something I would do, no, but obviously down to you if you want to do that, Although if you really like it it seems a bit odd to change.
The series parallel is worth having though, gives you a different sound thats just a bit beefier. I had that on my Jazz for those times when you just needed a bit 'more'. I have it my G&L too, but that already has too much!