Upon request I have created a video to demonstrate the rein sequence I created after years of fixing horses and their confidence issues with the bit. Ideally this sequence would be implemented when very first introducing contact with the bit!
In the video you will see a horse who was conditioned to believe the bit was a barrier, and, something to back off of of avoid. This was the very first time this horse went through the rein sequence and it changed him in just a few minutes!! Through repetition you will see him begin to stretch and move through his whole body.
Definitely worth watching the full video
Sorry for the vertical orientation of the video!