[quote=@Torch]
[@Frengo] Older zombies would probably be more cunning and have more control over their body so yes, I suppose so.

Though I had in mind that, because the zombification basically lowers oxygen levels, which in turn leaves the zombie slower because less oxygen can be supplied for movement - soooo, athletic people with stronger hearts (pre zombie) would be the faster ones.

Basically, whoever they were before being a zombie affects their speed. 
[/quote]

okies,

So older zombies = smarter zombies. 

Fat people = awful rubbish zombies

Gym freaks = OMFG ITS COMING RIGHT AT US!

Sounds good to me, chief!