Okay, I will try to explain this in a way that makes it easier....I hope (just like the fs/bs argument your brain can get short circuited) I hope I have this right.
Lets assume were are talking about a regular rider (leads with the left foot)
Both feet strapped in, nose of board under left foot, taveling with the left foot foward nose to tail....riding regular.
Both feet strapped in, nose of board under left foot, taveling with the right foot foward tail to nose....riding fakie.
Rider spins his bindings around to make the board goofy:
Both feet strapped in, nose of board under right foot, taveling with the right foot foward nose to tail.....riding switch.
Both feet strapped in, nose of board under right foot, taveling with the left foot foward tail to nose.....riding switch-fakie.
I think its the same on a skateboard.
does this help or did I just give everyone a headache?
