Dick, Sunbury, Ohio
Never used a net as such...used an old Persian rug on a swing set when I was a kid. Many holes were driven through it. Went to a dome in Columbus, Ohio in the winter until greed for the land led to its' demise.
I am wanting to put up a net in my 40'x 40' outbuilding with propane heater (1000 gallon propane tank next to building).
I have used a launch monitor in the past and have looked into getting one.