Might make things easier in the editing department to try OBs. record the entire session and just jot down timestamps of when stuff happens. will save you editing after each game to allow u to enjoy the session and since you have the timestamps it just means you dont have to wade through the entire recording. shame to see the software not being what it used to be.
Possible thought on the Software Steve. I think you have the same settings as when you record Gameplay with a graphics card. there is a setting when you press the record button that it records the previous few minutes as well as ongoing. so say when you have a good moment in a game the program recovers the previous few mins. i think what your software is doing is recovering the few seconds previous to when you press the play button. Just a thought!