I've wondered about this.
As a 'northern hemisphere guy' I have noticed that students seem to be more liekly to end up off track to the right. But of course that could be due to some other factor - maybe a sub conscious tendancy to want to unmask the area beneath the left hand side of the nose.
I guess it would be worth calculating it.
ISTR reading that it's a significant factor in long range gunnery. So if its a factor for guns firing shells at ? several hundred metres a second for a few miles, it ought to be a factor for aeroplanes travelling a bit slower but far further.
I might do some sums later
pb