On the subject of strings…
In the past, Taylor has mentioned that most of their older model guitars can handle both Lights and Mediums. When in doubt with a model, it would be worth a call to Taylor to check it out.
At one point they were shipping Grand Concerts and Grand Auditoriums with Elixir PB HD gauge (.013 - .053). Basically Medium treble strings with Light bass strings. I like this gauge so much that I use it on both my Grand Concerts, my Grand Orchestra, and all three J-200 Jumboes.
Note this gauge is the opposite of Medium-Lights. I fingerpick all my instruments using my nails as picks. I like the bump given to the trebles strings and the big boys don't need that much bass to sound real good.
Don