This might sound a lil crazy, but when I shoot my broadheads (NAP Bloodrunners) they shoot fine but I have a whistling sound or shhhhh as it is going through the air should I be worried (as in spooking a deer) or is this nothing to be concerned about??
It's probably just the air going through your blades. Almost every broadhead does it, nothing to fret. What vanes are you shooting?