Real-world gamma radiation vs. hell-spawned gamma radiation is still a little problematic. Both the Silver Surfer and Havok have been shown on panel, established canon, draining the Hulk's gamma energy and returning him to Bruce Banner. Further, Captain, er, Monica Rambeau has been shown on panel, in canon, boosting She-Hulk's strength with "real-world gamma radiation." Human Torch can't absorb hell fire. He can't expunge it, either. Lastly, let's not forget that Red Hulk can absorb energies, including real world gamma energies. I wonder how the writers are going to address this obvious continuity gap/gaffe when it comes to Hulk's new Hell-based gamma origin?