on the money,
depending on how bent they are you would probably want to check.
you might have crap loads of meat on the pads or you might not, either way to get rid of hte noise you are going to have to get at the pads anyways to check.
its a piece of piss to pull the bloody pads out and bend the indicators to where they should be if you have heaps of meat left (keeping in mind evenish wear etc).
I can tell you I've had this problem a couple of times with my rather dust inducing ultimates. half way through life theres always a pad that nneeds the guide to be bent.. just got bent in somewhere along the way and i forgot to check and bend to the appropriate spot.. no biggy. take the half hr to check all 4.. re-bleed brakes for some good pedal feel and top up the resevoir... walla...
so simple i could train a monkey to do it >