My object is too big! How can I scale it down without wrecking the Biped, Bones or skin setup?
Biped — If the character already has Skin (or Physique) on it you should be able to just pick the root node of Biped and scale it. All the other bones (of the Biped) are children of the root Biped node, so they should follow along and scale appropriately. It is recommended that you turn off the Skin (or Physique) and scale the model by itself and then reset the scale. After that is done, reset the Skin (or Physique) and turn it back on. If there are errors with how the bones move or how the Skin modifier is setup, you may need to reapply your Skin modifier.