Be careful with the deoxit! It is for metal contacts and can get capacitive, or corrosive at worst.
Any kind of cleaning has to be followed with a re-lube.
I have seen everything used: WD-40, 3 in 1, P&G fader lube, Deoxit(red or gold), Tuner-renu, TF with lube- and they all degraded the faders over time.
I would not use any of these products! Especially on carbon faders.
The alcohol cleaning is good if used sparingly, but you have to follow-up with the Caig Fader lube or lube supplied by the manufacturer, applied with a tech qtip(no fuzz) not sprayed. Best to separate the wiper and clean it gently with alcohol. Spraying a product into a fader and calling it clean is wrong. Even if it sounds clean it will gunk-out and crackle soon.
This only applies to carbon faders. Plastic is very different. I only use the P&G oil for cleaning and lubing, and alcohol for the wiper assby and guides.
Cleaning only or application of other lubes will work for a while, but will deteriorate the element over time.
Mike