Im super excited that this program works as well as it does. Matched with the .25 heavies mk1's it's hard to miss. I was a little reluctant to spend the ten bucks for the app and then it not work. All's I have to say is wow. I wish I had a scope cam to video some of the shots I made out to 125 yards on sparrows. I have a FFP scope so it makes the set up easy matched with the Weather Flow Wind meter you can't go wrong. Sorry for rambling just excited.