The recommended Atari joysticks are switch-driven (i.e. digital), instead of the usual smoother-action analog sticks available for the Apple II. Since the Apple II hardware makes no distinction between two paddles or a single analog joystick plugged into the same jack, it is also been possible to connect and read two fully analog joysticks with the Joyport via the paddle jacks, but few (if any) two-joystick games supports this, and Sirius did not suggest it. Why not is unclear, but there may be a noticeable speed advantage when driving two digital rather than analog joysticks on the limited hardware of the time.