There was something I didn't like in the high end of my F-40 Traditional, a little thin on top. I had it strung with D'Addario Light 80/20 strings. Well, I bought some single 0.013" and 0.017" plain strings that arrived today. These are the same gauges in the medium string pack. I replaced the high E and B strings with the medium strings and I really love the way it sounds. It only adds about 7lbs over the light-gauge set. I could also replace the low E string with a 0.056" and it would add less than 3lbs of tension. I didn't want to upgrade all the strings to medium given my low saddle issues, so this was the perfect solution. DIdn't even need to touch the truss rod.
Worth a shot if you like experimenting with string gauges.
Worth a shot if you like experimenting with string gauges.