I decided to take my third attempt at putting flats on my P-Bass in February. I had tried GHS Precisions and Rotosound 77s in the past and just couldn't bond with them. This time I tried Chromes and they only lasted about 6 weeks before I went back to Boomers. As much as people rant and rave about the feel of flats I actually like the feel of rounds better, possibly because that's what I'm used to. Anyway, I need to quit spending money trying out different strings... in the end I always end up back at Boomers and EB Slinkys.