I'd encourage anyone interested to read carefully the Von Wagner and Mangia studies. I think close examination of those papers will encourage you that this course is worthy of consideration, even for GT 3. You can buy these papers online for 20 bucks or so, if you can't find them free.
Be clear about whether you are taking weight based riba, and that you're looking at studies using the same in your research.
Paste this into Google for some of the threads I've participated in on the subject:
site:
www.medhelp.org goofydad mangia