FIRST: Yes, technique is key. I can already increase "mwah" or eliminate it with with my playing style. OK, NOW: I'm having a 2nd "experimenting bass" set-up and I'm thinking about having my luthier dress the fingerboard with a shallow scoop so that when I put Spiros on it and lower the bridge I'll be able to get a rich, think "mwah." I've long been fascinated by the sounds Reggie Workman got on those classic Pharoah Sanders discs, as well as the thing Steve Rodby has been doing since at least the late '80s. I'm primarily going to be using this bass for arco practice, and when I do, I'll have Belcantos on it, and I'll raise the bridge to get the strings off the board. I'm hoping the shallow camber won't be a problem when I'm using the bow (with light to medium force). Any thoughts on this plan?