Heads up is a tough game for me as well. I tend to bet too much and end up getting called down for a quarter of my stack at a time. Saying that youre more mathematically inclined, i would think that limit would be a better game. And heads up NL is about as far away from a math game as possible. I wish I could get better at it - it looks like a potential very fat cash cow. If you really wanna learn it, buy in to some cheaper NL games. See what you can do at a heads up $50NL game.