Geting back to the question about Binaries going out of time. As already said they are "slaved" together and come with top end ( 452x) factory strings & cables. They also have visual timing dots to monitor them. Not at al like in the old days of Dual cams. What they do have is level nock travel and higher than average speed. It should also be noted that messing with proper setups is trickier than a single cam bow and should be done methodically.