Help! I'm open to any and all suggestions at this point.  I have a young horse that has recently started just randomly pulling back at the trailer.  I use to always tie her with a rubber piece on the tie at the trailer so if she ever did pull back she wouldn't rip my ties off the trailer.  Well she learned she could pull back a bit and bust them.  Started tying her hard to the the trailer tie, shes not getting loose now but shes bending the heck out of the ties, have put a pull back halter on her, a neck rope on her and it continues.  She doesn't do it all the time, she might do it one throughout the day she might to it 20x  and there is no rhyme or reason for it.    Any suggestions? This needs to STOP!!

let her walk around halter and lead rope ,but not too long where shes can wrap it,and get caught on something.so she learns to give to pressure.she needs to step on it,so long enough to step on ,but not to get into trouble ,if that makes sense,

The blocker tie ring helped my guy tremendously, but it took a while for him to trust it. Now I have to use the 2nd tightness on it, but he acts as if he is hard tied.

Horses like this I would never tie them hard, I would just loop the lead just a tad smug. I have had two that would set back so I would just loop the lead rope, when they would test the rope it would give and they would settle down and not set back hard. But if tied off hard then they would fight. If I were in my open stock trailer I would just put them back in while I was off doing something else, horses like this need to be watched at all times so they wont hurt themselves or somebody standing close. 

1 thing does not work on all horses  i have had this work on   cross tie at trailer    or  tie up to a tree branch  where  the can pitch a fit  always keep a sharp knife handy

 1  other that is old school but work take a lariet rope  around belly up thru halter and tie  when tey set back they cut their air off relief is going forward

Try a second lead around the belly, where your cinch would go. When they pull back, it tighens around their belly first and they instantly step forward. My farrier just taught me this and it works like a charm!!!

https://www.youtube.com/watch?v=DddkQEvVjGI

Get a GUT ROPE.....had a horse that only pulled back when tied to the trailer.  After using this he tried it only 2 times then stopped. VJLS tells you exactly how it works......

My mare set back pretty bad a few times. I used the blocker tie ring. it didn't work. she just learned she could get away. After that i worked diligently to tie her to the trailer EVERY day. At first I would just loop the lead rope and watch her constantly. If she looked like she was going to set back I'd grab the rope, talk her through it, and if she got a tude i would use a whip and tell her to "get up there." Lots of praise when she did. I slowly started to tie her and didn't need the whip, just my voice.  She eventually learned that the trailer is a safe place to relax. At first I would leave her in the trailer and get all my entry fees or whatever else i needed to sort out before unloading. Now I can haul in, unload right away and leave her tied by herself with no worry. It took a solid year to get to that point, but i think after they setback it's hard to come back from that trauma. Keep the trailer a positive place for your colt and the work you put in will pay off!

I had a horse that pulled back. Her mom did it, her sister did it, her brother did it. They always had such a flight response regardless of what we tried. My mare could be managed. I knew the things that would set her off and she gave me 3 secs to get to her before she reacted. I could see her tighten and if I could get to her and put a hand on her, I could talk her down. She pulled back so much and so hard when she was young (before we figured her out) that she pulled muscles in her neck. A chiro told us she had tons scar tissue in her neck from this. We always fought pain with her. I dont like to pussyfooting around my horses but I will am sensitive to the ones who have a little bit of claustrophobia. Which seemed to be what she had. If she got in a tight spot or her rope came tight, she panicked. The tie ring worked best for her so when she did have an episode she got immediate relief and her panic was less.

The Blocker-Tie gives the horse relief.  However, someone needs to be watching to take the slack up initially.  They will learn not to panick when the slack goes tight but to move the feet to get relief.  They need to learn to give to pressure and that is not tied.  It starts when they first learn to lead where it is automatic they move there feet to get relief from just leading before tying.

Blocker toe ring

I also use a rope that basically goes around the belly and through the halter and connects to the trailer. I use it for any new colt I haul that shows signs of setting back for awhile. When they start to set back it pulls on their belly and makes them jump forward. We make them with a rope and carabiner, super cheap and always works.

THIS!!!! 

My colt decided he wanted to start setting back. He tightended the rope one day to where I couldn't get it undone so he stood there all day while I went to the barrel race. My dad finally got it undone and turned him loose. 

The next day he stood most of the day with the gut rope. I think 2 days of that and he's set back once since, and it was provoked, by my other colt. LOL 

I dealt with a mare that hung back, she figured out how to pop the tie rings and could get away. She did it up until the day she died, I refuse to deal with it again. It's good thing she ran a nice set of barrels and was an awesome ranch horse because she was a b*tch to deal with

I find a lot of horses that pull back have holes in thier halter traning. 

I get them really really broke, so they understand what do truly do with he pressure on thier head and not panic fighting it. 

I also make sure they get adjusted, if they are pulling they have mostl likley pulled themselves out somewhere. I also get thier vision checked if they have been good then all of a sudden they start.  

And I said a lot not ALL sooo :-p lol 

My 4 year old used to pull, she was just impatient and didn't truly understand how to give to any pressure. 

Consider treating for ulcers.  My mare randomly starting setting back at the trailer and was becoming downright dangerous about it. Setting back, launching herself forward into the trailer, throwing her body down. There were a few times I thought she was going to break her neck which is why I purchased a blocker tie ring. And I tried several "tricks" others have mentioned to help with setting back and nothing helped.  Finally on a whim I decided to try treating her for ulcers.  And as soon as I was through 10 days of omeprazole, the pulling back completely went away and she hasn't set back in 2 years now.  She had no other symptoms of ulcers, none.  The ONLY symptom was the setting back that started out of nowhere.  

My now 5 year old used to pull back religiously. Her issue was that any pressure on the halter would set her into a panic. Got her a tie ring and I use it anytime she is tied. She hasnt pulled back in well over a year. They dont break but they can get off if they work at it hard enough so be careful if they are alone for long periods. Mine is a pest but she hasnt got out of it yet. Ijust check on her periodically at barrel races to be sure she is behaving.