I would suggest that the Mesmer’s Portal Exeunt skill should utilise the red in-range bar that is used to show whether you are close enough to your target to use that skill. It should indicate if you are still within range of the Portal Entre. Right now, if you place the Exeunt too far away, the portals cannot connect; and you don’t have an indication of the length of this range.
This change would limit useless portals because of a bad range guess.
~ Radthor Dax, lvl80 Elementalist