I would use this much more often if it didnt cost so much to install. I have used existing fence, as well as some cheap amazon plastic and zip ties...the latter gets taken out by growth pretty quick. Its the typical deer engagement akin to making waters flow where you want.....it will work a little and even great in some situations....but if the deer have been using an area for years, there is a reason and a little tweak is the best you can expect to get away with