I only looked at duel 6 so far, not sure when I'll look at the rest (28K dial-up here).
For starters- Agent showed you his cards on the merge, and you could have simply gone straight about 800-1000 yards and then gone up, trying for a rope. Agent would not have had enough E to follow you up, and had he tried, (he wouldn't have- too experienced...) he'd have been dead almost right away. Had he decided to not follow you up, you'd have been left with the high ground, with him lower and slower. You'd have had several options at that point.
A more aggressive approach that I love to use in this situation, is to chop power hard (briefly) and simply pull onto and latch onto his six at 16 seconds into the film. At about 14.5-15 seconds in he tells you through his maneuver that this tactic will work. He can't see you at that point (16 seconds in) and is looking for you out of his high six view. If you pull hard onto his six, you just won't show up where he expects you to, hehe. He'll flip through his views after a second or two, and find you on his six if he isn't dead by then. If he's not dead by then, he's going to be in a bad position, and be entirely defensive.
Agent's merge was a dangerous one to try against someone who's paying attention.
As it was, he made it obvious that he was going to try to get you to turn, and you were kind enough to play along. He got an early jump on the angles game, which gave him an advantage since you went along with it, and then he controlled his speed through your rolling scissors. You were faster than him, which makes it hard to get him to overshoot, and easy for him to follow. In his case, he had plenty of speed to maneuver, and since you were trying to get behind him he really didn't need much to keep up. Had you not augered, and continued as you were doing- he'd have been patient, stayed in lag pursuit, and ended up on your six at about D200 I'm guessing.
I'd say that IMO, the scissors was not a good move to use here. You were faster than him, and should have tried some different tactics to turn that E advantage into an angles advantage. You basically went defensive when you didn't need to. That's going to be a tough battle to win.
MtnMan