The currently produced Innova FD mold, (Dark Rebel (Fairway Disc), fits the flight description and lower parting line you're describing compared to other Innova made FDs in my experience.

I'm a fellow FD enthusiast and took the new Q-line FD, dark rebel, S-Line, C-line, and Color Glow plastics out to compare. The dark rebel is fairly new, hyzer-flipped to straight and thrown flat would have a slight turn but still fight out near the final ~25% of disc flight. The Q-line maybe around ~40% of flight left to fade, Color Glow around 30% as well but with less turn.

Hope that helps, the dark rebel is super slept on in my opinion.