Quote Originally Posted by 416to305 View Post
Hi there, I was actually replying to whiskeybravo.
Oh, sorry I missed that. Nothing matters but the strength of the shield. Granted, I'm not exactly sure how ast/sch shields mix (I know they both don't stack, I assume though, that if an ast shield is stronger then it will overwrite sch shield and vice-versa).

The reason you sometimes see the shield overwrite and sometimes not is exactly because of the shield strength. There is like a 5% variation on heals/damage, so from time to time you may have a stronger shield on one person but a little bit less on someone else, when you recast Succor it overwrites the weaker shields but not the stronger ones, regardless of duration left on the original shield.