I need to replace the liner in my above ground pool. It is 15' round X 52'; deep. Any tips, advice, pointers?

I am probably going to attempt this in the spring.I need to replace the liner in my above ground pool. It is 15' round X 52'; deep. Any tips, advice, pointers?
After removing the old liner, put the top rails back on to strengthen the whole thing. Put in the new liner and pull it out over the top rails all around on the outside of pool so it is DOWN TO THE GROUND. Start adding water, you can use clothes pins on the liner and top rail to keep it tight. As the bottom fills from the center, go around and loosten the liner at the clothes pins to give a little slack. Keep doing this to keep the liner pulled tight until the bottom fills about 1 ft deep. You do it this way to tighten the liner for a smooth bottom. It also insures that you don't run out of liner. After you have 1-2 ft water in the pool, you can go around and remove the top rails and apply the retainers and put top rails back on. Fill all the way and you're done.