Here's a video playing back the 24bit 48KHz files that are pitched and stretched with non destructive editing in real time, these files are all on a USB 3.0 drive same as RT/RDs.
So if the BB Plugin can move to this method there won't be any wait time, it will play a frozen SGU from Biab instantly in your DAW.
I put all this info up as there are big (good) changes coming so I might be doing other things and might not be around too much.
https://www.dropbox.com/s/szd9wcytf2vgv78/Reaper-24bit-48KHz.mp4?dl=0