Best way to get most out of your elevation is run your wire. Then start at the releaser go to first tree it touches we made a two foot level with hook on one end .and 2/3/4/5 % hookes on the other end . Then work your way up the line in betewn tree start at 2% if geting to low go back and start over. When you have set right put nail in tree to hold wire and works as good referance point for future if tree takes line down. I do now side tying . If tree falls on line I can have back up level in now time.