You are correct, ASAP = As Short As Possible.
More than likely this rig was built for someone short, but stocky. Or someone short and stocky bought it used and we adjusted the main lift web for them. The C yoke provides for room in the chest, both front to back (think pectoral muscle through to your shoulder blade) and side to side. The ASAP provides a main lift web short enough to keep the rig from moving up and down, or having the chest strap too high under canopy.
If you ever have questions about our gear feel free to call us at 910 875 9002.
Thanks!
Chris