I have had GREAT success with 3 blade heads(Wensel Woodsmans)....from Bunnies to Bison. I too have found that they out penetrate some wider 2 blades in 3 different target mediums.
They also have consistently left great blood trails....don't ever recall being on a bad blood trail by anything I shot or anyone else I helped track.
I have passed through every hog I have shot with them, and buried the bison arrow to the fletch.
The 3 blades available now are getting better and better in quality also.
Nice to see you posting Andy....