Starting my 51st year of Bowhunting so I've shot many assorted heads over the years-2, 3, 4, 5, 6 blades.
It's hard to beat any 3 blade for next to no tuning. I have shot somemodel 3 blade Rocky Mountain since they came on the market in the 70s. Excellent head-no matter which model. Mine have always been sharp out of the package-put them on & shoot & with 3 fletch or 4, never a problem. Basically, if your arrow is of the right spine, size for your bow MOST 3 blades will fly great just putting them on.
I've shot OTHER heads over these Rocky Mountain years just because I like to BUT have yet to be impressed enough to change.
Elk, Buffalo, Caribou, Black Bears & many others have fallen to the Rocky for me..