wow, you really know your stuff. it must be said. a "Rosetta" is to latte art what a matching pocket square is to a tie.- ie: not art. just 2 flat whites, crema intact. no art. i straight up refuse to aknowledge a rosetta as latte art, and the hype surrounding it. i might suggest google images for a reference to cappucino's. to build a template to work from. if only you knew the standards of the traditional coffees, i can see you and others have much to learn. i am currently looking for a commercial grade machine as a new cafe will be opening in late march 2014.