My Nexstar always veers to the right shortly after takeoff. It's kinda neat in a way. It looks like I am trying to make it do that. Really consistent every time. I think I will take the cuffs off next time I fly it and see if that problem goes away. I too had problems trying to take off in a straight line until I found that the flat spot for the set screw was way off where it should be on the nose gear. Ground a new "flat" in the correct place, end of problem. I also ground out the pocket that the spring recesses into. It was way to close to suit me. Just my 2 pennies worth.