Cool, but that's not playing modes. That's just using the C major scale from different points and in different positions. You're still just playing in C. And that's not what modes are--they're not just the major scale starting from different spots. That's the very misconception that some of us here argue so strongly against. (See for example, Pacman's sticky on scales.) I don't mean to be harsh, but the idea that you have to be starting from the 1 of a scale to be using that scale is a fundamental error. Modes are also not finger patterns. Modes as you describe them don't give you a single option beyond what's already inherent in the key.