I was absent for the Dec 2010 LSAT for circumstances out of my control. Is this something I need to submit an addendum for, or do schools not care?
Do you mind sharing the circumstances with us? I generally do not think an absence is worth submitting an addendum, and if the reason is something egregious (i.e. you planned a route to the test center that had you stuck in traffic) then its not worth mentioning.
What else do you have on your LSAT record? If it’s just the absence and then one other score, probably don’t need an addendum unless a school specifically asks for it.