You say your using the raw soundtracks...
Yes. Let me clarify that I am using soundtrack material with sequences ONLY if the cutting demands it. Whenever possible I will use the original AC3 stream. Frequently it is the case that an original scene or chapter, comprised of sequences ABCDEF, will appear in the Prologue as ABDEF (a simple cut), ABF (a heavy cut) or ABFDE (a re-worked scene). Depending on the movements of the score and the physical dynamics of the audio signal, it can be either ridiculously easy or fantastically difficult to construct a seamless music segment for the re-cut sequences. If the music cannot be made to transition in a way that sounds intentional, then I will bring in the original soundtrack and synchronize it to key movements in the new video segment. I then isolate important sound effects from the original AC3 stream (as best I can) and layer those over the new music sequence.
Video cuts seldom have to be seamless; but the audio must be seamless for the edit to be convincing.
I twice had to use this process in Part 1, and the few people local to me who have played the scenes swear that the music was made specifically for my cut. So, whatever trickery I am using, it seems to be producing good results
