A very good question.....
The original Impulse coaster, Linear Gale, was designed to take the place of an Ultra Twister! Intamin designed it to take up the small strip of land the old Ultra Twister took up.
I've seen those Ultra Twister pics, I don't like how there are pieces of chain laying all over the place. I sincerely hope they get it back operating soon, especially since it is one of a kind on this continent.
-Peabody