Switchbacks are usually ARI, right? So we should spotted all remaining teams, I guess.
All the switchbacks I remember are 2 RBs, 1 FF and 1 ARI. So they can be different for sure.
For Switchbacks there have been 6 Roadblocks (hay bales, pole vaulting, free falling at Batoka Gorge, bungee jumping in Greece, the shrimp bikes, & the phone), 4 ARI (the cheese, the spy briefcases, the broken ox, & the water slide), and 1 Fast Forward (the head shaving). They can definitely change things up though!