You ONLY have to be under 6' in the opposing alliance HOMEZONES. Example below.
If a team is on the
BLUE ALLIANCE, they can be above 6' everywhere except in the
RED HOMEZONE.
If a team is on the
RED ALLIANCE, they can be above 6' everywhere except in the
BLUE HOMEZONE.
It is 100% legal to knock the ball BACKWARDS off of the OVERPASS(clockwise). So pass through the opposing HOMEZONE, pause, knock ball BACKWARDS, and go.