The sxx has different profiles to the TC spec. Its not rebadged.
I run a sxx stockspec, it alters the timing "on the fly" and has profiles to adjust accordingly when the power comes in and by how much etc.
Useful for stock racing in TC on carpet, not as much of an advantage in low grip/loose surface racing IMO.
The sxx stockspec also offers more options on the voltage protection.
Im sticking to the TC Spec for my buggies as i find that the extra grunt isnt needed. I end up turning the power down to make the buggy smoother to drive.
If you werent aware, internally the Nosram Matrix Evo is the same as the LRP Sphere TC
HTH
