Newly installed rectangular pool . Only been two days but the Liner on the inside 90 degree edge on the botton and the wall has not comformed perfectly to the shape. Still kinda rounded, especially on the botton of the steps. When it comes to the wall corners the PB did state from the begining that the bead gets installed on a 45%. I would assume that only the top portion of the exposed liner would have the gap but the parts below water would conform to the 90 degree. Remember its only been 2 days and they did use a vacuum when filling up to about 8" from the bottom of the shallow end.