Double load of Ciabatta in KA?

I've gotten into trouble before putting too much dough into my KA so I'm wondering if anyone has tried doubling the Jason's Quick Ciabatta recipe in a 6 qt. KA, and if so, did it work out OK?  The original recipe is about 1K - 500g flour, 480g or so water, - double that would be 2K with all that wild high speed slinging around of the dough.

Thanks,

:-Paul