Michael,
I was really happy with the phantoms. This was my first experience with them. The part I liked best was how sharp they were, and the four blades, which I think in the case proved to be very lethal. I think I switch to a different broad head every year though. Last year I used bear razorcaps which I also like. I did explode one phantom on a rock when I missed a grouse this sept, but I think that was to be expected.
Shooting carbons in the future, I think I would me most inclined to use the phantoms again.