I'm pretty sure this won't be an issue aerodynamically, and it completes the look.
I finally have the can of paint Krylon sent to replace the one we'd bought that didn't spray, and I'll be sending a sample of the color I want to the manufacturer tomorrow.
Update, 29 April 2008: For those of you who came here from urlesque.com, the airplane I'm buying is an AMD Zodiac XLi. I'm scheduled to pick it up at the factory in Eastman, Georgia on June 2. It'll be very well equipped, as well as being customized to my specifications. The Zodiac is the best choice for a light sport aircraft that'll serve as a cross-country cruiser; if you're looking at LSAs, give the Zodiac a close look.