I changed a lot of tips back then and almost always used Elkmasters. I saved my Champions for tips I put on for pro players. My tips never came off! Still can do it to this day with no fancy tools. Just a good knife, razor blade, tweetens glue, sandpaper and a strong rubber band (optional). I liked using Willards tip tool and the long funnel shaped hand sander for the final shaping. I could do it overnight in my motel room or in the back seat of my car if necessary. No one ever complained.
Most recently Dennis Orcollo played with tips I put on for him and won!