Board Thread:Questions and Answers/@comment-13429037-20130802023634/@comment-6346551-20130802083946

Stark is an exception to the norm. Normally natural-born arrancar don't gain a whole lot of power most of the time. Stark is one of those hollows who on a rare occasion gains a whole lot of power with the transformation into an arrancar.

However, with the Hogyoku, hollows will always gain a huge power boost with the transformation into a arrancar 100% all the time. Kind of like a cheat code in a video game where you get the best stuff or gain a high level at the start of the game.