At the moment, it's very difficult to properly adjust the grab position for objects in your hand, especially with avatars that have unique proportions. A modifier value appended into the Avatar Descriptor would be helpful.

An example of a use case is in my own avatar: my grab position is ~0.2m too far forward. To accommodate for this, I would set the offset value to -0.2.

The current way to resolve this is to move my view position back, but that has some drawbacks in itself.