More "()" means more actions/functions = heavier system requirement to work = slower scrips = more FPS.
As you can see,
Set Pointsss = (Position of (Triggering unit))"
has more ()'s than
Set Pointsss = (Position of Unitsss)
Indeed, if you're planning to use something more than once in a trigger (Unit, Point, Region, etc.) is better to save it into a variable and use a variable.
When you use (Triggering Unit) the system has to look for it. If you use 15 times (Triggering Unit) you're looking 15 times for the same unit, in change, If you set (Triggering Unit) into "Units" variable, and then you use "Units" in the triggers instead of (Triggering Unit), the system already knows which unit has to handle, instead of looking for it over and over.
And there's no leak as long as you remove the point after using it or not needing it again.
Set Unitsss = (Triggering unit)
