Every saddle will have 'on and off' pressure points during a scan - these are not bothering the horse. What creates a long term problem for the horse's well being is if there is pressure in particular area at all times (these areas are then displayed in red).
The in motion pressure scan lasts about 1 minute.  After the data has been recorded the computer will calculate the average pressure of each individual sensor during this particular ride. A graphic image is displayed with various different colors:

• Blue corresponds to the least pressure
  
  
• green and yellow are acceptable (a lot depends on the rider’s weight)
  
  
• Red means that the horse is experiencing a constant pressure under this particular spot of the saddle