Wow, I am the only to vote for Arrow and explain myself. Anyways, of the Arrows and Vekomas I have been on, the Arrows were rougher, especially the mine trains. I found Magnum unbearingly rough as well at points, with the airtime only making it worse. On the other hand, the four Vekomas I have been on, 2 boomerangs, a SLC, and a LIM, were bearably rough. I could enjoy the ride enough that I didn't have to worry about roughness. In fact, I felt the SLC, Thunderhawk, was relatively smooth. (maybe because it rained right before I went on it)