I've come into this thread late but it brings up several question about how BIAB functions. Does BIAB/RB generate it's file and call the parts of RTs when it needs it or does the program store the completed file with RTs in RAM?
If it has to call the RTs then maybe a solid state drive might be something that could be implemented in the future as a cache drive for the program to use the RTs and take the load off the hard drive. I've been out of building systems for awhile so I may have it all wrong.
Wyndham