Originally Posted by Abby
When you cinched it up did the back end of the saddle rise up a bit? If so, its because the tree has too much slope in it and its is round on his back causing the rear end to flip up. The gullet may be too wide too. It may sit the proper four fingers above but if the gullet is too wide the saddle will tip down in front, creating a loose back and adding excess stress on the horses withers.
Also the farther forward the front rigging the more apt the saddle is to slide back. I kind of prefer center-fire rigging. Center-fire rigged saddles must have the right amount of curve in the saddle tree for your horses back, if not, your saddle will rock back and forth and damage your horses spine. 7/8th is by far my preferred over 3/4 rigging. I feel like 3/4 actually pulls the rear end up when you cinch it.
the back end did not appear to rise up like one western saddle I tried on.
What I did to see if the gullet was about right was to put the saddle on bareback, and put it in the right place where it should be...then I putmy hands where his withers are and felt how tight it was across there. For english I know you want it where the gullet sits flat on the withers but not tight, so that's how I had it...or thought I had it.
It didn't slip backwards or forwards...but it just moved side to side fairly easy...mainly it did that if I made it move or if I was dismounting (not mounting thought for some reason).
I'll try to get some pictures if I go up and ride today...hopefully I'll be able to