One of the courses I play at just added a new set of tees, to make the course have five set of tee boxes. The old set up was teal as the ladies tees, then white, orange, and the purple being the back tees. The new set up made black tees as the back tees, with the teal basically staying the same, but everything moved up from where they were. They have re-rated the slope and ratings to reflect the new set up. The other two courses at the site are about to make the same change, also.
My question is, when these changes are made, how will this affect past scores entered in regards to handicapping? Say I played a round on the orange tees under the old set up, but the new set up means that it looks like I played the orange on an easier set up than I did.