The question has become moot. There was a very subtle bug in the refactoring that affected only the SCI_LATE_1_1 games and resulted in corrupted baseVar selectors (thus the multiple entries).

But thanks for the pointers!

Hi, I'm in the process of making the SCI engine more palatable for an 030 Amiga on OS3. One function that shows up during profiling is Object::locateVarSelector(). It basically walks the list of _baseVar in a linear fashion until it finds 'Selector slc' in there (or not). In order to accelerate that...