Sorry to say he has the definite advantage. Skeet guns normally have a Improved or a Special Skeet Choke. Trap Guns traditionally have a Full Choke or Special (tighter) Trap Chokes. However to make the bet fair, demand that he only use his Modified Choke (if he has one) in his shotgun to compete for the lunch on both fields! If he uses the Improved Cylinder for Skeet mandate he use it on the Trap Field! That should more than even out the score. Unless he is lightning fast on the Trap Field you should have a slight advantage there!
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
Today, we need a nation of Minutemen, citizens who are not only prepared to take arms, but citizens who regard the preservation of freedom as the basic purpose of their daily life and who are willing to consciously work and sacrifice for that freedom."
-- John F. Kennedy