The 44.1 is a great car pretty much dialed out of the box. I havent boke in arm in Weeks and since changin to bb springs I havent broken a shaft since December. All the Wheelers will break when u clip a wall or pipe with a wide open 6.5 imo. Stay smooth and clean and youll be fine. At my home track I race against a bunch of kyoshos n some rangos and they break just as often.