Sorry cmhbuck, this thread went off the front page so fast, I never saw your questions. I'm going to wait to see if JConte adds gpa to the main recruit search before I do anything with it in the recruiting tool. If he doesn't add it to that search page within the next few weeks, I'll try to add a way to get them in the recruiting tool.
Also, bhazlewood posted formulas for the recruiting tool on page 8 of this thread. You can copy and paste those as well as modify them.