I don't like mirage as much as flags. It can be real time, but its so finicky, all the changes I can see in it, getting thicker, thinner etc... in a spotting scope drive me nuts thinking its something changing and its not really. I trust the RIGHT flag much more. I trust the feel on my face and what I see in dust/impacts, grass and so on much more.
Just me anyway.
Dueling trees can be fun. Haven't shot one in a couple of years though.
Can't wait to see the sights and the shooting on that too.