There was a BC years ago on 161 who loves to do that to the
VSOs.
I wonder if he was caught by mata or what cos he has stopped
that practice...and before that, incidentally, a VSO on 161 was
caught by mata for speeding.
i've seen that on LO3x too...last year October, in an afternoon
on SBS9133S. go down slope on SLE, press N gear..