As RPM said, putting on heavier strings will put more tension on the neck, which can cause it to bow.
It's not a great idea increasing the string gauge (dramatically anyway) without knowning how to set-up the guitar for the heavier guage. I suggest you take it in for a setup. Can't hurt!
Your in Birmingham right? Take it into Sound control (now reverb) http://www.reverb-store.co.uk/
89 Old Snow Hill, Birmingham, B4 6HW
They are pretty good, and have lots of nice shiny Taylors and Martins...
As RPM said, putting on heavier strings will put more tension on the neck, which can cause it to bow.
It's not a great idea increasing the string gauge (dramatically anyway) without knowning how to set-up the guitar for the heavier guage. I suggest you take it in for a setup. Can't hurt!
Your in Birmingham right? Take it into Sound control (now reverb)
http://www.reverb-store.co.uk/
89 Old Snow Hill, Birmingham, B4 6HW
They are pretty good, and have lots of nice shiny Taylors and Martins...