His tone certainly sounds more like flatwounds, but there are several threads here where people have said he used rounds. He also used different basses over the years, but primarily a P-bass. If anyone here is using a GK rig with a P-bass to get a sound like his, please discuss your amp settings in detail. I have a 400RB and 2x12 Neo cab, and it's a great setup for Geddy Lee and Chris Squire sounds, but I'd like to know what kind of settings to use for a much more mellow sound. I've got a new set of flats I'm going to put on a G&L SB-2 here shortly and would like to get close to his sound if I could.