I have a 7qt lifter style kitchen aid stand mixer and use it often to make bread and pizza doughs.
Generally works great for very large batches, but I find that either the 7qt bowl is too deep or the dough hook isn't quite long enough and smaller batches end up with more than half of the ingredients hanging out below the hook.
Are the 6 qt bowls compatible, but shallower? Is there a longer dough hook available? Any suggestions?