I play rock almost exclusively and have mostly used rounds. I generally haven't liked flats on my J-basses, but I loved flats on a couple of basses. First up, GHS Precision Flats on a P-bass provided totally classic old-school P-bass tone, and were wonderful for recording. I did prefer rounds on that bass for playing live though. On a DiPinto Belvedere semi-hollow, Ernie Ball flats enhanced the "thud" factor, but weren't muddy at all. Sounded fantastic, and I liked the feel too. I think I swapped them out only because they didn't get along with a drop-tuner.
I briefly tried DR flats on my G&L M-2500 and liked them, but took them off quickly because they weren't working for a recording project. I still have them, and might try them again. Thing is, I love the wicked MFD growl at high volume, and have no desire to smooth it out!
I briefly tried DR flats on my G&L M-2500 and liked them, but took them off quickly because they weren't working for a recording project. I still have them, and might try them again. Thing is, I love the wicked MFD growl at high volume, and have no desire to smooth it out!