I rode them as Dueling, right when Potter was under construction, so the land was a mess and queue rerouted somewhat. I then rode them later as Potter, but I think before they actually stopped dueling? Could be wrong.
I never thought they were that great. They're clearly spectator rides with no decent set up for spectators to watch - granted I never saw the surrounding area in its original state, but I can tell from photos and the design of the landscape beneath them that they thought the dueling aspect would matter more on ride than it actually did.
Lightning Racer at Hershey is a great example of a dueling ride done right from an on ride perspective, but the nature of the b&m invert train on dragons meant you could never get that true interaction.
Neither were particularly good examples of the ride type, either.
So, I won't mess them, but I do think there's something obscene and wasteful about removing them. What it goes to show is just how much money is involved with Potter. Most parks would jump at the chance to have such a substantial ride in their lineup, but at IoA it's not important.
So weird.
I can't help think the park will feel a tad empty without two huge coasters though? Coasters inherently feel like a substantial part of a park lineup. I know that's just the coaster enthusiast in me talking, but still.