Jumpseat Question about Delta

[SAAB Driver]

Three Questions: Does Delta still have the one jumpseater per plane policy or as many jumpseaters as there are jumpseats in the cockpit? I only ask because my normal commute could be simplified, if I was able to rely upon Delta as a connection. Second I am with Colgan who just entered CASS, will that help, even if the policy is still only one jumpseater per plane. Finally, is the preferred method of travel when using an airline that is not your own to travel on, getting listed for jumpseating by calling in advance or showing up and listing at ticketing and getting a boarding pass for getting through security.

I hope all airlines just simplify things and go to unlimited number of jumpseaters per plane to help out commuting pilots.

Thanks