I agree with kissing. I recommend at least trying a wound low G. Here's a couple of guitar strings that work very well for a concert:
D'Addario NYL026w
Savarez 544RH (This one is a polished string and has a little less zzzzzz as you move around the fretboard)
Plus, Ko'olau sells nice sets with wound low G, but I think they're nylon, not fluorocarbon.