Why do you guys think it's better, to run premix for racing???
For the life of me, i can't understand what you guys find so hard about pre- mixing.
Anyway you want to trust your motor to a 40year old pump, because you are to lazy to tip abit of oil in your tank, when you fill up. That's up to you.
Ask yourself this, if oil-injection is so great why didn't yz,cr,kx,rm,it,pe, i could keep going but you get the idea come with it.