if his regular caddie was with him for several years it would be a shame that after years of loyalty he missed out on a big payday because of inability to be there.....so i think the classy thing to do would be to simply split the 10% between the 2 caddies.
that would have been an awesome story.
the great gesture that would put matt kuchar on the map as a great and generous and loyal guy instead of a cheesesteak.