That is probably the best source for information related to balance. You can also find a bit of information from myself around in the HALP forums when people have asked for specific advice such as this topic.
Bare in mind some of the advice provided is specific towards the original poster's needs, though there is a lot of information there which applies all around.
"In anything, if you want to go from just a beginner to a pro, you need a montage." /w TankSpot WTB Montage for Raiders.