Originally Posted by QuiltE

I don't see why the back would look any different than the front.
That is, providing you have it sandwiched well, so that there is no puckering in the back.
But that goes for whether it is one or two needles.

If you like the look on the topside ... you should like the back view too.

That being said, it would be better used for an open FMQ design (without intricacy), in order to show the beauty of it. Like a ribbon falling and flowing.

Just be sure to change your needle plate to allow for the double needle ... and choose a double needle with the widest spacing you can get.