Totally get what you're saying about Vortex, the speed is def a game-changer. I've been using Surge for the acceleration, but that 2 MPH diff you mentioned really makes me think. My buddy swears by Vortex too, says it's all about getting to the finish line first for those sweet rewards. Might have to check out their customer service https://vortex-cellular.pissedconsumer.com/customer-service.html if I switch, lol.