I have shot some model 3 blade Rocky Mountain for over 40 years now. I was fortunate to correspond with the Sons owner just b/4 they sold out & purchased many, many dozens of the different 3 blade models at that time at an "extremely" low price. Me, 4 adults in the family & 3 G-sons ALL have them. 2016 actually starts my 60th year in Archery/Bowhunting (I joined club & organized archery in 1956 & bought my 1st real bow that year). In all those years 3 blades have accounted for at least 98% of nearly 150 assorted biggame animals. They "always" fly great & do a great job when I do mine.. How they fly is my most important factor.. Currently the Ironhead.