User blog comment:Rayjr/Chad/@comment-1740937-20100110075946

Well, you are kinda right with the whole Hollow stages of evolution. Gillians are actually formed by group of hollows fighting and eating each other, then they fuse together to form a Gillian. Also, it's not that the Gillian retains intelligence, it's actually that one of the hollows that forms it gains control over it by being more powerful.

However, back onto Chad. While I don't think that his Grandpa was a Hollow/Arrancar (do you see any mask fragments?), I do have another theory, no matter how far-fetched it may be. When Chad first started seeing hollows, he fights one in the park right? Well, I reckon that when he first struck the hollow with his fist (not with the armoured arm), he may have absorbed some of the hollows powers. I am right in saying that, out of himself and Orihime, he is the only one to have touched a hollow before their powers developed.

What do you think? XD