It is not about the powerplant but about the pilot. Just that the 2 best in the world use YS could be a coincidence but.......... I start using electric motor in 2015 and would not go back but love to hear the power from an YS engine that works the best thing with this hobby is that you have options and could follow your personal preferences. If YS continue to make engines in the future I guess that we will have pilots from both worlds for many years ahead.