I have some variation on cups and balls for every venue I work, except strolling stand up situations.
I perform my 2 cup routine at the restaurant I work at so I've got the most experience with it performing an average of 60 times a week for the last 2 years. The beauty of the restaurant I work at is that every table is its own little room so none of the guests can see what I'm performing unless I'm at their table.
For stage and parlor I do my 3 cup routine which is still in its experimental stages. I've got some great bits but it's not at the level where I can do it with my eyes closed. I've been doing pumpkin final loads these days.

Eddie