Ultimately, we ended up just using the responses.xls file to calculate skip to values. Specifically, in the skip to colum, we included a conditional statement that asked the program to select the GPA insert file that equaled "ER-"&B2+.10 to the GPA item response (e.g., if participant entered 2.40, the response file would represent that value in the B2 column, add .10 points to it, and pulled the GPA insert titled "ER-2.50"). This seems to be working just fine. Thanks again for your help, Blair!