I use 20" and frequent application if Rain-X. Don't need no stinkin'
wipers most of the time. :-)

Jake de Villiers wrote:
> The 'con' would be the increased work load on the motor and linkage.
>
> I run 18" passenger and 19" driver - its as big as I'm comfortable with here
> in the temperate rainforest where we use the wipers a lot.   :)