Jammed Stab,
I should have been clearer about what I meant - I think the 73 has less aileron sensitivity and less roll authority because of small control surfaces, and I'm making an educated guess that design was because of the potential for manual reversion. They are relatively sensitive in roll to gusts and shear, especially the NG, due to the low inertia of such a sized aircraft and the light wing loading, especially the bigger and longer (more moment) winged NG. I found having extra fuel reduced the roll induced by wind effects considerably because of having greater mass outboard - the fuel not only gave us a better chance of getting in with allowing a second attempt before getting near reserves but also by markedly improving gust alleviation. It saved me numerous diversions and a lot of subsequent costs. Of course, it wasn't in the books, so I'd get told off by the bosses for having extra fuel... No room for common sense in modern flying.