Basically you just dunk the model in down to the base (upside down) , pull it out and flick it a round to get rid of the excess quick shade mix. Leave to dry and the spray with a matt varnish to get rid of the gloss.
Here are the models just after dipping and flicking,,, A rat catcher, 2 desperate mercs and a madness.
They are still 'tacky' and when completely dry it does look better. Its a very effective way of quickly finishing models but I would test it on one before going mad. It shades but sometimes it does look a bit 'heavy' compared to normal washes etc. Remember its is "quick shade" to get quick results.