I have no experience with the sphere comp, but if it's anything like the sphere, it's trash. The GTB does NOT need a degree in rocket science, just the fundamentals in reading. All you need to remember is in minimum drive-profile one is the most aggressive off the line and profile 3 is more subtle but just as aggro at a 1/4 throttle. Give yourself a nice amount of brake and you are set. I have had zero problems with the GTB..no glitching, no thermals, no shutdowns.