Hello, I have been the owner of the newest Castle sidewinder sct combo for my slash 2wd for about a month now. I bought it because the combo was said to be superior to the vxl system that traxxas makes. I later learned that the sidewinder sct will only allow for a 2s lipo battery. I purchased this motor esc combo expecting to be able to go around 40 to 50 mph. How is this possible if it only allows for a 2s lipo pack? And is this system really better then the velineon?