RE: Real Fine Tuning
The limbs probably are reacting equally. It's just that the upper part of the bow weighs more than the lower part (the grip section is below center of the riser) and the slightly topheavy weight distribution is what makes the bow rock forward.
Slightly topheavy with a slow forward roll is good. Extremely topheavy to the point the bow feels like it constantly wants to fall forward makes for a clumsy feeling bow, IMO.