Drift is 13 years old and has definitely been through a lot in his time, but this I just do not understand.
I have only ridden him once since I got him, but I've tacked him up and 'ponied' him behind Ray while I rode HIM. He has no problem with tack when it is on him or on the ground, but when you are PUTTING it on him OR taking it off, he has a cow! He pinns his ears back, stomps his hooves, and swishes his tail back and forth repeatedly (irregardless of flies). I can take the saddle pad and put it on, then take it off over and over again and he seems to calm down a little, but still pins his ears back. When I first got him, he didn't do this, but he would shy away from bridles. (Not halters.) Now it's backwards- He has no headshy problems, but Ray does. Ray, who has NEVER had a bad experiance with ANYTHING, will roll his eyes back and lift his head while rapidly blinking when I try to put a bridle on until I put my hand on his neck and force his head down and tell him how silly he's being. Then he all of a sudden calms down.
Does anyone know why they switched personalities or how to overcome Drift's fear of being tacked up? Will this affect how they act under saddle at all?