I have and use both. I have EB Group II flats on my P-bass and DR Lo-Riders (lately it's been the nickel version instead of SS). My main band is an R&B project that spans everything from Motown to newer hip-hop and neo-soul and all points in between. Our setlist is usually determined by the audience we expect. If we are playing primarily for an older, more mellow crowd (Motown and early 70s soul/funk), I use the P-bass. I do this because it sounds more appropriate for that style. Even though it isn't my preferred tone for everything, even slapping does sound a bit more authentic on the flats in that environment.
But, most of the time, we play a wide variety of material because our audience has a wide range of ages...anything from 20-60+. For those shows, because we cover such a broad range, I bring the 5er with rounds. Even though it doesn't sound 100% authentic on some of the oldies.
So, basically, I look at my setlist and see what the majority of the material calls for. If it mostly calls for flats, I'll use flats. If it mostly calls for rounds, I'll use rounds. It really isn't a vintage/modern thing either. There is a lot of newer material where flats just sound better, or more authentic anyways. But, when my band launches into "Candy" by Cameo, it definitely sounds if I'm using the bass with rounds.
Oh, and for the record, cutting the tone control on a passive or treble control on an active bass does not give you the same tone as flats IMO/IME. I have both kinds of basses and have used both kinds of strings on each kind. Flats do not automatically equal mud and they still sound great in a killer rig. YMMV.
But, most of the time, we play a wide variety of material because our audience has a wide range of ages...anything from 20-60+. For those shows, because we cover such a broad range, I bring the 5er with rounds. Even though it doesn't sound 100% authentic on some of the oldies.
So, basically, I look at my setlist and see what the majority of the material calls for. If it mostly calls for flats, I'll use flats. If it mostly calls for rounds, I'll use rounds. It really isn't a vintage/modern thing either. There is a lot of newer material where flats just sound better, or more authentic anyways. But, when my band launches into "Candy" by Cameo, it definitely sounds if I'm using the bass with rounds.
Oh, and for the record, cutting the tone control on a passive or treble control on an active bass does not give you the same tone as flats IMO/IME. I have both kinds of basses and have used both kinds of strings on each kind. Flats do not automatically equal mud and they still sound great in a killer rig. YMMV.
