Specifically blade models:
742P05576
and
490-110-F191
I called Cub Cadet support number, and the person there assured me the ultra blades provide more lift. Which makes sense, but looking around various (scarce) sources, some mention those blades are identical. They are just a new packaging model number.
I want to install a bagger on a Cub Cadet Ultima Z2. And I'm trying to decide if it's worth getting those Ultra High-Lift blades or not. Don't want to buy them if they end up being exactly the same as my stock blades that came with the mower.