There are so many different flavors, and so many different types of questions that could be asked, I find myself wondering if I’ll ever have all the formulas memorized properly. Its making me feel like this guy: http://www.splodge-plog.com/wp-content/splodge-uploads/2008/02/my_brain_is_full.JPG
why are you going formula based. I do not use a single formula for any of these swap questions…