I'm confused on how much a "1/2" of milk/creamer would be in drinks. I've gotten mixed messages from people. Some say do it by the measurement lines, ex. Grande Iced coffee to second line and the rest milk. Or others say just a splash but I am always worried about eyeballing it. I don't mind redoing drinks if the customer doesn't like it but any advice to better understand milk measurements for 1/4, 1/2, 3/4 ect...