An apparatus for use with a surgical stapler to provide a reinforced surgical staple line. The apparatus for transmitting digital data includes a generator of MHE packet headers that include additional information about at least part of the digital data and a packet formatter that installs the MHE packet headers in the MHE packets. Then, the game apparatus determines whether the calculated tilt angle has transitioned across the boundary between the upper limit value and the lower limit value of the tilt angle. Each of the plurality of projections is to provide one or more contact points between the body and an inner surface of a bonnet coupled to the fluid valve.