I switched to the small Griots PFM towel. It makes the job so much faster as it only takes one swipe to dry. Griots Garage PFM Terry Weave Towel, Set of 2
I've been reading this thread with interest as I am also considering the Duetto. I considered the Flex but wanted the smooth operation and better finishing that Rupes offers. I'm waiting for next months Sema announcements to decide as I'm hoping for an upgraded Duetto.
Look back at the pictures of your car with the PA products. I remember the wow when I saw it with Gold Zirkon. The spritz is a longer term protection and we all know you'll be polishing it off soon.