I'm looking for a saddle for my pony who is only 12.1hh, with quite a short back, and a very wide spine. The physio has said she needs a wide channel, like about 4 fingers width, but does this mean I look for a saddle with a wide gullet, or is the gullet measurement and channel two different things? I understand the difference between the two, but just not sure what I need to look for when I'm researching online. I'd rather ask these questions here and look silly, and then know more what I'm talking about when I go to the saddle shop!!
Also, are there any saddle brands you can recommend that have wide channels?