With 4.0.1 and the Flexible Raid Lock System it is now possible to link
Instance Locks directly from the RaidInfo window to chat.
However when such a link is linked in guild or trade
your own status for the instance is not readily available.
Well... no more
Instance comparison as easy as comparing items.
Instance Lock Compare
... will automatically go over your saved instances and show a comparison ToolTip
with your status for the instance linked.
Know instantly if you can join the raid,
or if several are linked which one you would prefer to enter.