Just a quick thought on "backside" mat surfing.
I am a Goofy foot so rights are backside for me although before discovering mats I had been working on my switch stance.
Although going right on the mat is comfortable, different and fun I find I just think about going left more.
Here is a picture where it looks like everything is a little off.
I am not sure if I am recovering from some disaster or what but
1) left hand cluching the mat rail preaty far aft
2) right hand squeezing the left front of the mat
3) looks like I am dragging the rear of my behind in the wave face
I don't remember this specific wave or if I was trying something different (the mat looks a little over inflated) but I look like I am focused on the the little section up ahead and hoping it becomes interesting.
The beauty of riding these craft is that the experience is constantly unfolding.