Always wondered about string gage. I have heard many folks say that size of the instrument has a lot to do with sting gage preference...and that the larger the instrument the greater the tension/gage in order to move the top. Nevertheless, I believe I will try some lights on my rosewoods and see if there is a difference. Right now I have all dreads, and they all have mediums/aj17 coated d'addarrios.