Yeah - if it was thinner is would have to have less heads; and so with less heads reading would be cut down and indeed writing. I'd imagine the thinner one would be more expensive too - so I would get the normal one unless you specifically need the thin one for some reason.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.