Mad jock,
Yes thats exactly what I mean. Sorry I was not clear.
Rmcb,
I honestly didn't understand much from that last part

Appreciate you trying to help though.
Is the concept of PUSH the head and PULL the tail correct?
With these kinds of needles, can it be that the tail is NOT indicating the radial?
I think it always does, since the head always points TO the station.
Clarify this to me please someone?
Thanks in advance.