Regardless of which system(s) you choose, you don't want the audience seeing a TWO person act. Code acts have been exposed/burlesqued for decades. The best 2 person acts, downsize one partner, so the focus is on how SHE,(or he) is able to reveal thoughts, not on how THEY can communicate with each other. Remember people do have brains. Brian Gillis and his mentor Eddie Fields, downsized their roles so much, the are forgettable. Great code acts generations ago, featured "Princess Yvonne" or "Leona LeMar", people thought that man in the theater was an usher or the theater manager. One 2 person act, has his wife, as one of the audience, siliently,cuing him. If you do intend to spend time/effort on a system that takes a lot of practice and work...make sure you have a partner that won't leave you, with no act....divorces, falling outs, etc., have destroyed acts and careers.