I thought someone might say about the sponges! We were not in our own units, maxolen sell a massive range of products but were waiting on an order of washmits so we had no choice with the sponges, but as car was being corrected it was not really a problem but I will be sticking to my carpro washmit.
A lot of people do use the zymol sponge and dodo sponge if the has car a good pre wash and the sponge is cleaned off regularly and light pressure applied then the car should remain pretty swril free.
The video was more about learning, a good detailer is always learning new ways, practising trying lots of new products. The car is now wearing 7 different waxes and opticoat 2.0 for testing purposes.