My tool magically changes size when I hold it in my hand...

.. It gets smaller.

http://i.imgur.com/kWNtLvA.png


Why are lucis tools shown worn on the back anyway?

Not a bug.

This was originally done for Luminary tools to "show them off" better, since it was quite an achievement (especially in 1.0).
They obviously did the same with Lucris tools.

Usually the tool gets bigger when in hand, must be a Lala problem, or maybe not......