I've had a lot of people come and ride here with their saddles and horses to get a scan.  

What I've learned is that you have to duplicate the amount of time you are mounted every time you try it.  They recommend 20 minutes.  And you've got to keep it from slipping somehow, which I've found difficult.  





The scan of the Keiler shows someone who is riding with most of their weight on one side.  I don't remember who the rider was, and I've never owned a Keiler, but I certainly do have that problem.  




The dressage saddle on Elska shows a badly fitting saddle with lots of bridging  The whiter areas are areas with more pressure which has squeezed out the gel in that spot.  




The same dressage saddle on Ogri.  It fits him better than it did on Elska, but still not great.  





An Australian stock saddle, which clearly fits Ogri better.  This is the one I usually use on him for trail riding.

 



The treeless Bob Marshall sport saddle on Sproti which has really great weight distribution.  

So this gives you an idea what you can see with the Port Lewis Pad.