It would be helpful if experienced level 60's in their project 99 class could have a look through this easy to read spell database:
http://lucy.alkabor.com/
and point out all spells that are not in the same condition here on project 99. You can check stacking also.
I'm not saying the alkabor spell database is exactly what we need here, but it would be a good way to flag spells for a deeper look/more research.