after watching a friend of mine adjust to her first road bike - one of the things I noticed was how Hard she was gripping the handlebars. She was doing the same thing - swerving all over the place, having a hard time holding her line, etc. The bike is very light and very squirrly but she was also deathgripping the "bars thinking that would help her control it better. Once I convinced her "light hands/heavy butt" her handling skills started to get better. Don't know if this applies to you or not but thought I would pass the notion on.