I use a Standing with my horse. I use it, as someone said above, to keep his head below a certain level. Also, I like that in the event of a spook or a slip, I know Im not going to get my faced whacked and end up with a bloody nose... I have seen it happen. To professionals even.
I ride a friends horse from time to time, and she uses a Running. I LOVE the head set it puts him in, but I feel that it "puts" him there, not because I asked for it. And sometimes he'll break at the 3rd and not at the poll.
So I would start with the Standing. I think you will see results from that. As your tack shop what their return policy is, clean it up, and get a running if your trainer suggests. My trainer can be vague sometimes, maybe since she assumed you would be using them for the same purpose, she gave the preference to you. I am not always that assertive to ask my trainer what she means, looks like we have that in common.
Ah - yes you did. Since you are apparently paying someone to supposedly teach you - yet they are not doing a complete job - you felt the need to ask your question to complete strangers who are unaware of the whole situation.
I agree that gadgets can be shortcuts. If I put a brace on your back to ensure you sat correctly in your saddle - is that teaching - or torment? Of course you can say - Gee this hurts. Your horse cannot.
As one of the other posters said - you probably need a new instructor.
As for the above comment, I don't think you asked for a critique at all. Isn't that the point of horseforum? To seek advice from fellow riders and horse people? I wouldn't go as far as to say we are total strangers in the aspect that someone out there may have encountered a similar problem. Yeah, the training section and the critique section are the most popular in the way or responses, sometimes I feel it hard to get an answer out of a straight question. But that's why we are here, to learn and read. And I hope that you, JumpinigIsMyLife, got something
out of your post.