Been playing Ps for decades, but with round wounds, either Rotosound Swings or LoRiders (45-105). Just got another P for flats. It came with Fender flats - sound great, but too stiff. Any suggestions for string/gauge for a traditional flats thump, but with a similar stiffness/tension? I was thinking of trying Chromes, but going to a slightly lighter gauge (40s).