You're on the right track...
I would recommend one of Gary Jobson's books, or better yet, get another C-25'er to go out on your boat with you. You will learn a lot - FAST!I agree with the other post, try running with main only for starters. It is easier to control than the jib and you can more easily let it out if things get dicey. Once you have the main down pat, start with the smallest jib you have. If you have furling, let out about a 100 percent jib (the trailing edge of the jib just brushes the mast when dead center). This will give you enough sail to get going and get a feel for the two sails working in concert.If you feel you are over-canvassed (you are heeling to much), letting out on your traveler to spill wind from the main. That will bring your heel back down to a reasonable level in moderate winds. If that doesn't work, you'll need to bring in some jib.When you are ready to try winds 15 mph and above, you should look into reefing the main.Good Luck, and let us know how you make out. Remember - go slow, and have fun!Rob