really?
That and his voice recognition as well.
In the Zero series, wasn't it a helmet part that shortened his charge time? Should that lend evidence to the idea that, though the charging mechanism may not be the helmet gem, it could still be somewhere in his head? I dunno. I always thought the charge process originated in the reploid's microfusion reactor and was then focused through the Buster or Saber.
It probably is, when you look at the design of XCM's Ultimate Armor. That and X1 specs list the arm as containing an "energy amplifier".
Since day one the head gem has flashed to indicate low power. Beyond that, who knows? But head upgrades have tied into many things. Weapon energy consumption, peripheral weapon analysis, self-repair, radar, charge speed, power-up magnet, weapon targeting, and of course the ALMIGHTY HEAD CRUSH that the Xtremes love to milk. >.> Heck, a very-hard-to-find X5 snippit (Skiver capsule as Zero) suggests that head parts could be used to beef up defenses beyond the body upgrade alone, and X8's menu indicates a link between Head Parts U and the Shoryuken. I think the head upgrades are kind of a "miscellaneous extension" deal, they can be virtually anything. General systemic stuff especially, since arms, legs, and body tend to be associated with more specific functions (attack, mobility, and defense/giga, respectively). And it kinda makes sense for an upgrade to systems management to be in the part closest to the brain.
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