hey guys, I have a question for some of you that shoot with a custom turret, My father has a 300 wsm with a leupold scope. He has one CDS dial system made for PA elevation of 1000 ft, he has it zeroed at 200 yards and shooting dead on.. We are leaving Tomorrow for an elk hunting in Wyoming and will be hunting at 9500 ft. He took off took off his 1000 ft CDS turret and He put on his 2nd CDS turret which is made for 9500 ft with a 200 yd zero, My question is... Will he need to rezero his scope when we get to wyoming at 200 yards. Or (( SHOULD)) it be right on? Thanks guys.