Removing the 50 point kicker, and making stun Meat x10 improves the usefulness of having that statistic at a high level. Keeping the kicker in place makes the playing field more level for all characters. Think of it as handicapping in sports scores. That said, I like Byrn's suggestions on this topic. The divisor Chainsaw Aardvark suggested would avoid both having a separate stun pool and the egregiously high penalties possible for cyborgs. Give our mechanical brethren a chance. That does have the downside of adding another mathematical step for taking stun damage, though.