The audio and video timers do not line up, so they are different. But when I do the suggested fix it only makes the video worse, it de-syncs the entire movie, rather than just part.
(Which is to be expected since it changes the frame rate)
I tried doing a Chapter split (41 in total), and each of the videos had its own perfect audio sync, but when I put them all together the audio was still off a fair amount, with and without the suggested fix, but better without.