I think it depends on a lot of factors. What strings do you want to use? How often are you slapping on songs? What bass/amp are you going to use?
I asked (kind of) the same question in a thread a few weeks ago, and took the plunge and put some Sadowsky flats on my P5. I play funk/R&B covers, and only slap on maybe 3 or 4 songs a night. IMO, the flats sound fantastic when slapped in that context.
I can tell you that I will not be going back to rounds anytime soon.
I asked (kind of) the same question in a thread a few weeks ago, and took the plunge and put some Sadowsky flats on my P5. I play funk/R&B covers, and only slap on maybe 3 or 4 songs a night. IMO, the flats sound fantastic when slapped in that context.
I can tell you that I will not be going back to rounds anytime soon.