When using clear plastic sheeting and caulking that sticks to plastic and concrete you can see exactly wherer the bead has made full contact or not. Squash it down so it is about 1 inch wide and there will be no voids. Lots of wrinkles happen and with the clear plastic you can see the caulk inside and spread it as necessary. And it is a bitch to do in a house that is already up. Hire some kids or some yahoo's and they will probably hack it.