IME the Impulse is a lot like the Eliminator in that oily-medium is about the best I've been able to get out of it, even with a scuffed cover.
You *could* go with a drilling with a stronger PSA to try to get it to open up the midlane more, but I wouldn't hold out much hope of being able to use the Impulse on a longer, flatter pattern with a lot of volume.
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...formerly "The Curse of Dusty," and "Poöter Boöf" before that...