Well, here's something simple for you. Keep to this warming-up!
10 minutes walk, first 5 min. Long loose reins. Then ride him round and low. Not Rollkur, but lower. This loosens his neck muscles up. And ride plenty of circles. Make him look outwards and inwards, that is the most important. Your horse has to be flexible. Try a trot and ride him low and round. Keep him active, plenty of collected trot and burst out into extented trot. This has to happen in 1,2,3! This way you keep you horse from leaning into your hands and using your hands as a carrier. Then give him more room (loosen the reins) if I'm right, he will try and search the contact between you and him. When he does that, you can begin the real work.
I happy to help you anytime. I work with problem horses, a stiff neck is a tiny problem to me. You don't want to know what kind of problems I've been through.
If you ever want anymore help or tips, just ask. I here to help. ;)
Again, thanks, hehe :p
When I warm up I only ride circles, I make big and small ones, around the jumps, changing direction after every circle, trying to loosen him up. And it helps, he relaxes more, but because of his stiffness (cuz he's not worked well every day, they just put a loose chambon on him and he rides around with his nose in the air) every time I try to get him to bend his neck, or just turn
his neck left or right, he speeds up, so then of course I hold him back before he has the time to speed up, and make a circle but then he stops and starts to rise on his hind legs. And if I keep trying, he just stops and rises more often, tenses and then I have a really bad jumping lesson because he starts hopping around.. :/
A few weeks ago, I was allowed to borrow him for a dressage lesson, and I really got him loosened up in the end! For half an hour, I struggled with him stopping, rising, going sideways, going too fast and all kinds of things, but after 30 minutes of hard work it payed off, he went down and bended his neck by himself, I didnt even have to have any contact with his mouth, I loosened my reins and he still went down! But that was some hell of a lesson, and the next day he went to the forest, so unfortunately it all went to waste.. -.-'
So if you have any advice of how I can loosen him up in 5-10 minutes of trot and gallop, please do tell! My lesson is at 16:30 on thursdays but we have to set the jumps up at 16, we can't do it earlier because there's lessons, so I have to set up jumps from 16:00 to 16:15, saddle up fast and get in the saddle, so i'm down at the riding house around 16:18-16:20, I walk him around 7 minutes, then I have 5-10 minutes to warm him up, since I get a few minutes at the start of the lesson before we jump, then I warm up on a cross and a few small jumps before we really begin at around 16:35, and then we do a course and stuff untill 16:45, and then I walk him off. I only get 15 min. Of a jumping lesson because I have my private lessons alone. If I rode with another person, it would be half an hour, but there's no other rider who has a pony who takes the private lessons, and I can't have it with a horse because of the distances on the double jumps and stuff. So the length of the lesson depends on how many people there are, so each person gets 15 min in all.