Brent, it's easy because the airplanes are usually available in both configurations. Keep the 72mhz versions behind the counter, etc. Make a decision based who to sell what to. There aren't any descrimination laws about selling model airplanes. That's the dumbest arguement I've ever heard. Everyone knows the descrimination laws about race, sex, creed, etc. That's not what would happen, so wouldn't come into play.

Before you give those laws too much credit, there are still "men-only" golf courses. Remember B. Clinton getting in hot water for playing at one? Unless you are a lender or hiring, those laws are incredibly weak.