Randy,
Those Hellfires are great broadheads. I have killed several deer with them, and they perform as well as just about any other broadhead for that purpose. And they are less expensive than most. I have said on many occasions that the Hellfires are a "best buy" in a quality, screw-in broadhead. Steelforce makes excellent broadheads. I also have some of the Steelforce Premium single bevel heads, and they are very well made too. The Phat Head Africans are also good broadheads and just about indestructible with the .08" thick blade and steel ferrule.
Based on all the shooting of Asiatic Buffalo that Andy Ivy has done, the 3-blade VPAs penetrate extremely well. I'm not sure what 3-blade Ed Ashby was shooting, but I bet they weren't the VPAs if the 4-blade heads penetrated better in Ed's tests (unless he was using the 4-blade heads where the bleeder blades are tiny little things).
Again, any of the broadheads discussed are more than enough for deer with your bow and arrow combination. You're good to go for elk too, and most other medium-sized game animals.
Allan