I've had three different custom tunes thru a SCT Xcal 2 on my car starting in 2005
1) Natural aspirated with race header & full exhaust, k&n intake, and 87 octane tuned by Randy @ FSWerks. Good gains in power, smooth idle, and no more hanging revs. Overall good experience.
2) FS-VF vortech supercharged stg2 - 93 octane - tuned by Randy @ FSWerks. Again smooth power and torque curves. Drove for nearly two years with many auto-x races, no issues. Another good experience.
3) FS-VF vortech stg 3 (intercooled) - 93 octane- tuned by Randy @ FSWerks. Tuning was done recently, very few miles driven since, but so far so good.
I have no experience with any other Focus tuners ... FSWerks has treated me very well with remote tuning.
Zetec Crew #83
02 sedan ---> now an SC'd se.
Now intercooled 201whp & 186wtq on 93 octane
Hey -- we don't know nothing about kids. So if you need something... Find it yourself. Or better yet, learn to do without.