I did the same with my 3.5" Heritage.
All of the sudden I can shoot it with reasonable accuracy now.
The bird's head grips are apparently not for everyone.
Very true. The birdshead grips look great until I start shooting. I did the same thing on a rough rider. My 10 year old isnt a fan of the birdshead either. I thought it would be easier for him to handle and he asked me pretty fast to put it back the way it was.