Stunning (enhancement)

B36 enhancement for Affliction (advantage)
restores a property inherent to the advantage which is lost if some other enhancements replace it.
Side Effect mentions that "+50%, plus the cost of
the Affliction enhancements. For instance, stunning would be +50%," indicating it is free and the default of SE, just like for Affliction.
However if it was combined with others you would probably have to pay the +10.
Secondary perhaps allowed a free primary stun to retain if a Heart Attack was the secondary.
==Extended Duration==
The basic effect does not appear to have a duration, since physical stun lasts indefinitely until a HT roll is made. So it's unclear what would happen if this modifier were added.
This brings into question certain designs like http://gurpsstarcraft.wikidot.com/psionics for Maelstrom and Mind Blast which use the phrasing "Extended Duration, 10 sec, +40%". In the case of Maelstrom This is likely intended to refer to Persistent to add a duration to an AE, but it makes no sense at all for Mindblast which is non-AE (you can't target a person with a Persistent only hexes)
Category:Enhancements