I (and my horses and the horses of my clients) prefer wool flocking (or even foam) over air panels. Air doesn't absorb concussion hence the bounciness everyone is talking about while wool will absorb concussion. Think about a basketball- the more air you put in the more it will bounce! If the rider can feel a bounce what does the horse feel?
If you can't find a Wintec without the Cair panel look at the Thorowgood synthetic saddle at Dover Saddlery. I think they are more comfortable for both horse and rider as well as being wool flocked and most importantly...less expensive.