Launching skip skip on Wednesday: what makes a skipping stone feel right?

Hi all, I'm launching skip skip here on Wednesday, a calm stone-skipping game for iPhone built on real physics, set at real lakes like Moraine Lake and Cannon Beach. The thing I spent the most time on is the flick: how angle, speed and spin turn into skips. If you've played it, I'd love to hear how it feels. And if you skipped stones as a kid, what's the most you ever got in real life?