I prefer the memory dampener theory it would give a bit more to write about then her just losing her memory. if it was more suppressing the horrific memories of the ‘incident’ mentioned in OVA3 then if she removes it or is accidentally removed or destroyed in combat then the scene following of her mind slowly unhinging and snapping whilst the rest of the Tenchi crew try to help her or calm her would surely be a lot more moving and add to her as a character more then wiping the slate clean with memory being erased.
