On the the bus, assuming you are not on special tracking (they want to see you more often), you alternate PT to PC every nine months... so you are taking a full PC (checking) every 18 months. The PC is a three day event with practice the first day, a maneuvers validation (V1cut, etc.) the second and a LOFT on the third day. (they also do spot training- windshear, egpws, advanced maneuvers, etc.). The PT is a training event and is two days long. You practice maneuvers, learn to work the doors again, etc... supposed to be low/no threat. The training and PC are good and the evaluators are reasonable (from my experience). All fleets are the same... the widebodies have some landings events if you go non-current... not an issue for the bus