Hardly ever.
With the Frigidaires, it unnecessary and a real waste of water. In the KM/WP's, a faint scent of Lilac Tide remains; and since scent is a must for me, it's great that the WP/KM's don't snuff it all out, less tight spinning, ya know. Very satisfying.
But I do love playing with all of the controls and using them as uch as possible, so......
I do confess to going up to a sleeping machine, the GE and the WP are my usual targets, and turning the extra rinse switch (GE) or pressing its button (WP), and watching the magic as they sit all quiet for a bit, and then click and whoosh, here comes the water. Then I just morph it into whatever cycle the waiting load needs.
My new washer guru, John Combo, insists that over-rinsing is bad for the machine's longevity, but I don't have the material mastered yet, so I'll let him explain if he's of a mind to it.
It involves total removal of lubricants which promote early corrosions of metal and mechanicals.
Speaking of GE rinse dials, I have an extra one. Your welcome to it. Light as a feather, it will cost pennies to send. It's so small I'll have to find a nice little troll coffin to send it in ;->