From what I have been told from her last owner, she has only taught to ride. I had to teach her the leg cues, neck reining and some other stuff. I did have a trainer once that taught me some warm up ground work, and how to turn for barrels (that is what I am training for her to do) When I first got her she wouldn't even let me on bareback and wouldn't go anywhere so she has improved a lot but has always been nipping at my legs. She is still fairly new to the leg cues but know what they mean.
I don't know what her diet was then but now she mainly eats grass and sometimes mixed grass. On the ground she can lunge, back up and I have just taught her to bow and respect others space. She has been doing excellent with ground work.
Mounted she gets a little more fussy about everything. She hates back up but will do it, throws her head around and doesn't respond very well whenever I apply pressure on the bit. My trainer recommended that a vet and chiropractor should look and her teeth and neck. As far as I know, she has never gone to the vet for your teeth and stuff like that.