RE: Stingers 2 or 4 blade?
I have shot Stingers for a couple years now and feel pretty comfortable in saying that (almost) any shot you get apass through with the 2 blade....you would have gotten the same with the 4 blade..........only you would have a bigger set of holes laying blood down.
The 4 blade heads leave BIG holes and LOTS of blood. The sharpness of Stingers is amazing and with a low KE setup I think you will be pleasantly surprised at how wel they fly and how deep theycut.