I made a COTH account solely so that I could respond to this thread, because I had a huge problem with this! I had a Chiberta, and it caused my Thoroughbred gelding horrible back pain, to the point where I and my vet decided to X-ray him for kissing spine. Prior to this I had the saddle reflocked with wool (mine was a slightly older model, a 2009 or 2010 I believe, and the foam that came out of it was hard as a rock and deteriorated. Supposedly the newer ones have a different type of foam that’s not supposed to do that, but headsup if you have an older one because you may want to get it looked at) and used a sheepskin half pad, and had it looked at by a saddle fitter.
After his spinal X-rays came back clear with lots of healthy space (which is great news for me because he raced for 7 years and I was not expecting them to look so good!) we figured out that the problem lies in the construction of the Chiberta- the billets are attached directly to the flap, unlike in a traditional dual flap saddle where they go up into the tree and can move. The Chiberta’s are fixed in place and because of this, the pressure went up through the billets across his spine and created a pressure point on two of his vertebrae. Those were the ones that palpated as sore and were directly under that line of the billets up over his back.
Will this happen to every horse? Probably not, and it didn’t fit him perfectly so that didn’t help the pressure distribute evenly. But pay attention to the vertebrae directly in that line of the billets and see if they come up sore.
For what it’s worth, I LOVED this saddle. It was so comfortable and I felt secure in it. I was extremely sad to part with it, but it had to go. I’m still looking for a new saddle to replace it- any suggestions are welcome! Right now I’m leaning towards a dual flap CWD. I may try another monoflap, one that has the billets go up into the tree (like CWD’s) but I’m hesitant about even that.