Hey thanks to one and all for your input. I think I'll keep mediums for a while, and stick with the Martin 80/20 phophors. One thing I've noticed about medium gauge strings; when they go they go in a big way. One day they were still sounding crisp, but the very next day they were sounding so dull I thought I'd done something to the guitar. A restring corrected. I've been away from playing for so long I'd forgotten that you have to change your strings once a month or so. 8)