AIO may be used with the PC, especially if you are not using a polishing step. It's cleaners work very well at removing oxidation.
I normally use it after a polishing step to clean off oils and fillers prior to applying SG, so I do it by hand.
Just make sure you use the "less is more" principle when applying both Klasse products and you can't go wrong.
And remember to allow SG to cure for at least 24 hours per coat.