I got nuthin' ...
It might be a placebo effect, Lucas Oil Stabilizer or fuel injector cleaner but I think Dave's MAF trick further smoothed out the throttle response and rough running condition in the Focus. I used an Electronics Wash from my local electronics store.
LOTR can't post but he can sign my name to nasty rep comments? Is that what's going on here? This is hardly the Peace, Love and Poise message listed at Emo.