Now that you mention that about the saddle, wasn't the video called "saddle troubles" or something like that? I bet you're right on the saddle fit.
I rode Bud again yesterday with my bareback pad and things went even better than the day before. We did walk/trot/canter (I forgot how rough riding Bud is, ouch) and went for a short trail ride on my back trails. He was a perfect gentlemen, even with the wind blowing a gale. The only thing he did that bothered me was when he caught site of the barn on the way back, he broke into a trot. He's never been barn sour so that was a surprise. I checked him back into a walk and he stayed in it, although walking very fast.