ACT Writing Scorers Are Making MAJOR ERRORS

I was surprisingly not a victim of the new ACT writing (32C, 31W). I would like to add that what’s also weird is that the curve for the writing section changes for each administration. So, 11/11/11/11 may be a 31 on one test (like the September one) and a 34 on a different test (the 2015-2016 Official Practice Test). It seems odd that there isn’t a uniform curve for the writing section. How is one prompt harder than another prompt?