Every stance in MaGui bagua is a mabu or a mabu feeling. Mabu is the only stance that enables the whole body to connect.
Mabu: feet parallel, not too far apart, well sunk into the hip joints so thighs almost parallel to ground.
Ban mabu (half mabu): leading foot turned in the direction of the strike, well sunk into the hip joints the same as mabu.
Turned mabu, smooth stance: leading foot turned in the direction of the strike, the stance higher (similar to but not identical to santi stance)
Open mabu: leading foot turned and slightly off the straight line, allows the body to be more comfortable when striking with the rear arm.
Close mabu: Rear foot very close to the leading foot, both turned in direction of attack.
Front 'empty stance' mabu: Leading foot weightless but not empty, rear leg well sunk.
Some techniques are done in what looks like a santi stance. But a santi stance usually aligns the striking arm (the leading arm) with the midline. MaGui turned mabu aligns the striking arm with the leading leg - on the line of a mabu. Example: chuanzhang.
Some techniques are done in what looks like a reverse stance. But a reverse stance usually aligns the striking arm (the rear arm) with the midline or rear leg. MaGui mabu feeling aligns the striking arm with the leading leg - on the line of a mabu. Example: tanzhang.