Hi John: If you are going up in gauge you would also have to file the nut to the proper size as not to have the strings bind, and I would do a setup since you are removing the strings. Try to get a copy of The Setup and Maintenance DVD that Greg did. It has a lot of information for you to do a setup. also look into taking his Setup and Maintenance class that he gives, I believe he does a class at the Guitar Gathering, and definitely does another in Nazareth PA. I took it there, it was excellent , I learned a lot from him. He does it at American Archtop / Nazareth Guitar Academy.
