Good to have you interested in Carrier, Jim. I suggest you immediately join the Navy Carrier Society by sending $6 for each year's dues to Navy Carrier Society, c/o Ted Kraver, 225 W. Orchid Lane, Phoenix, AZ 85021. Include your email for electronic receipt of the Newsletter. This will keep you up to date on what's going on. You might even request Newsletter Editor Gary Hull for a copy of the July-August 2009 Hi Low Landings newsletter. In that issue, I have written a three page article on modifying the Calkins Guardian from Brodak for competition. In addition to the modifications Bob Frogner mentioned, which were developed by Bill Calkins, there are other details on the construction that you might find useful. I was able to build the airplane in 7 days (copying the kit, so I still have the kit to make another one,) drove to Muncie on the 8th day, took a few test flights the 9th, and won Profile at the Nats the next day. It flies nicely enough that you don't have to be an expert to get it to fly, either. There will be some information on this coming out in an article in Control Line World by Gary Hull. It may not have quite as many details, though.
Pete