Your going to have to give a set up then. I'm assuming M4 is soft? I don't know those tires at all. Start with oils and pistons and if your running drag brake.? I can say this my kit will turn on command. No drag brake absolutely no lack of steering at all. You could try different tires. His set up weight or just out right kit could be an attribute to the tire. Inserts are a good thing to consider. Are you running the same?