Having listened to both now, I think the adaptation of GO was better than the one of SG. I think it was just easier to understand what was going on in GO because much of it was familiar - cars, cities, countryside, suburbs, etc. SG required more description from the narrator in the first place. Then there were changes from the book, so just knowing the story from the book wasn't helpful and may even have interfered with understanding what was going on. If there are extra segments on the CD release, that might help, but at the moment I think I'd have to recommend the recorded books over the performances.