I've been using DR hi-beams for a long time and after reading so many flat users post and listening to some old Iron Madden I decided to give them a try again. I had tried flats on a cheap beginner bass years ago which didn't sound good at all. Tried them out again on my fretless a couple years and was pretty happy with the tone except for slap. Just last week switched all 3 of my Ibanez basses that I gig with to Rotosound Flats. Durring practice I was liking them a lot, and at our show last night got some complements on my tone. I think I am now gonna stick with these strings cause they are getting a great low end and my highs are still coming through while still sounding like a bass. The funny part is my guitarist calls flats tone killers, he doesn't know I switched to flats yet but said he likes the tone of my new strings lol.