In the Old Days, saddles were custom fitted to the rider and horse. Sometimes people had numerous saddles because your horse (and your) shape changes throughout the year.

All that craftsmanship is now extremely hard to find. Consequently, it is expensive.

And… not all “saddle fitters” are equal. Find a competent one.

I had a horse who was happy in a $100. saddle, yet when I rode sidesaddle, a beautiful $2,000. saddle did not fit him. Price is not always the deciding factor in comfort for your horse and you.

Never pass up an opportunity to learn. Try various styles of saddles, too. I used to ride english, but my current horse likes a treeless western saddle. We use it and have a wonderful time. Be flexible in your expectations.

Hi Early, definitely sounds like your mare is in discomfort, is this behavior that you only see when bridled and saddled? Some trouble shooting ideas would be to do ground work (everything you ask of her when riding) in a comfortable halter. If no problems, do the same ground work with the bridle (be sure to engage the bit because that could cause backing and head tossing). Then, if all else is good work her on the ground with the saddle. If it’s a poor fit she may fuss without weight, but if she is only unhappy with you in the saddle give a poor fit serious consideration. BUT, before investing in a new saddle make sure it’s not an injury that’s agervated by a rider. Hope this helps!