Hi Tahoe
maybe you alredy know this but . . .
When you switch from CGX to P96 (or viceversa for testing porposes or such), remember to remove always the libraries of the other RTG system.
i.e if you will install P96 again, remove cgxsystem.library or you will not be able to boot your system
Another point: IF you will install OS3.9BB2, you will need at least CGX 4.2pre7.
No problems with P96 2.0
Good luck :-)