Hi Yann
Thanks for the reply. Phoenix absolutely hates a bit in his mouth. Well, it's more accurate to say he's totally terrified and gets in a right state. We don't really know what happened to him in his first 5 and a half years with bits, but we do know that he's terrified of lunging because he was whipped and battered round, rather than lunged properly. We think he's been really hurt by a bit cos he just can't handle it at all.
The problem with the pressure halter is that he takes off with you on the end of the lead rope. You're left with no option but to let go - I can't run as fast as he can canter and neither can his owner who owns the livery yard. So the pressure is relieved in full flight. When things are going well, there is no pressure and if he misbehaves then stops the pressure is released immediately since we let him apply the pressure himself, so when he stops the pressure is gone. Some days he can be led no problem, halting to verbal commands, walking on to verbal commands, absolutely perfect in every way, then just as you think you're safe - zooooooooom!!!!!!!!! There's no rhyme or reason to it, there's nothing that sets him off, it's like he's taking the mickey. So, we have a stroppy, naughty horse without a bad bone in his body, who does have genuine fears too.
Being led in a bridle made him go ballistic as the bit came into action if he didn't halt when asked. I've never seen a horse so scared. That's why I wondered about the bitless bridle. Also, if we use it as a headcollar we cut down on the amount of tack he has to get used to and if we can get him leading in it without fear, but with some control, it should bode well for riding. To be honest, I think he will get better after he's gone out at the beginning of May and joined the herd, but I want to try anything that will lessen the fear he feels without increasing mine
So far, it's the yard owner who's working with him, but I'm getting braver. She backed him last year for a previous owner, but then he didn't get ridden, so he's been turned away for a long time and we're starting again. Last time he was perfect under tack and we expect the same again, but we think it was through fear rather than willingness.