are you sure each of the ships don't have their own collision parameters?
i find the auricom much more difficult to get through the chicane (ubermall forward) than say, another unwieldy ship like piranha.
could just be psychosomatic i guess, my mind likes to play tricks on me.

back on topis: i don't think i've ever managed to get this glitch but then again i've only tried with icarus.
maybe i'll see if you can do it with every ship...