Roman said:
Guild dreadnaughts are regularly strung with mediums,
The literature (and the strings) that came with my D-55 states - "Guild light guage strings".
That's what shipped with it, and, even though I use Elixir PB's, they are lights.
Roman,
Forgive me Mark and Russ, but I'm a proponent of light gauge strings on all acoustics......here's why.
Every Guild Gallery Magazine I've got, and they have a Guild catalog in them, every Guild guitar catalog that I've seen, show most Guild acoustics to be shipped with light gauge strings, with the exception of the "S4CE,F4CE, F5CE" shipped with extra-lights. From a '98 Gallery Magazine....."shipped with lights are the D4, D25, D30, D55, D60, D100, DV6, DV52, DCE1, DCE5, F30, F30R, JF30, JF55, JF65 and the JF100". Exceptions are the "Deco, Finesse and Valencia", which show to be shipped with medium strings.
I think it boils down to simple physics. All strings pull the components of an acoustic. The heavier the string, all else being equal, the more pull it has on the neck, bridge and top. I think that you can get away with heavy or even extra heavy strings (if they make them) for a time, but "eventually", they pull stuff out of whack. If you don't need a big sound and play around the house, and would like your neck to stay true, bridge to stay glued down, and top to stay relatively flat, I'd use lights. If you perform for folks and need a bunch of sound, I'd play mediums.
West