The Six Flags Magic Mountain (SFMM) Discussion Thread in Theme Parks, Roller Coasters, & Donkeys! Posted November 2, 2018 I like Viper. Vortex needs to be loaded onto a rocket and launched into the sun. And I'm the complete opposite. I thoroughly enjoyed Vortex, and re-rode it 5x when I visited KI. Viper on the other hand beats me up. I think my torso is too long for Viper's restraints, but I seemed to fit in Vortex's just fine.