I've done a quick scan of the thread since 1.15 was released and haven't seen anyone asking if discless booting has improved any.
Either this is because everyone that's running discless understands what Dean's done to get black-screen games running and knows it won't make a difference to discless, or no-one else is in the same boat as me (doubt it!).
It seems that the black-screen fix entails moving the game folder to a location more similar to the layout of a BluRay disc, so the file paths are more accurate - is this correct?
If so, I doubt it will help discless mode, but I'll give it a try tonight anyway!