I've read similar looking posts, but nothing addresses my particular problem.
I have 2 shipping rates and rules setup and no longer confusing each other (thanks to rfay's excellent vimeo tutorials and the discussion here: https://drupal.org/node/1415638)
One is for domestic and I'm trying to add a 50 cent per item shipping charge to a $3 base.
The other is international and I want it to add a $3 per item shipping charge to an $11 base.
I have things basically setup like rfay documents in https://drupal.org/node/1415638
And it's sort of working. The problem is it appears to be double-counting one of the items - I'm probably saying this wrong.
e.g., 4 domestic items should be base ($3) + 3*50 cents = $4.50, but it is currently computing $5.00
My international rule is behaving in the same way. How do I avoid this double-dipping?