I would by some replacement blades for the broadheads, move my pin up a bit to adjust for the 5" high issue, practice some more and go hunting. Getting good groups is very important, but after my bow is tuned up I tend to stop trying to hit the same spot over and over and start trying to hit the spot I am looking at for that particular shot. The kill area is large enough on the mackenzies, move the sight pin over an inch (up an inch, etc...) and you will save valuable fletching, as well as find out how good you are really shooting.

Sounds like you are shooting very well, just need to adjust the point of impact for the sighting system.

My .02
Brian