Why does the cribbing bother you so much? I have a cribber, and honestly, I may have fixed all of the things that initially made him crib, but it becomes a mental addiction just as much as a physical one, and that's not going to go away. But since your guy is young, you may be able to stop the habit with proper care.
I would recommend first getting him on a supplement the both protects against NEW ulcers and heals the old ones. Also look at how much hay he's getting. Is he getting enough? If he's out to pasture 24/7 and still working, you should have some sort of round bale for him to munch off of, or bring him into a stall and give him additional hay. Also make sure he has access to a free choice salt block.
Also, you say he's still cribbing with the cribbing collar, but is he actually cribbing, or just making the motions? You'll know he's actually cribbing if he grunts and sucks air. Otherwise, he's just making the motion and it is not actually hurting him.
Consider putting up hotwire on your fence tops if he's cribbing while out in a pasture.
I would not recommend surgery....that's pretty much something someone just came up with to make money. While it doesn't actually hurt the horse, his performance ability would not be affected, why would you want to sever his muscles? That just doesn't make sense to me at all. Big Dee's Tack & Vet Supplies | DIGESTIVE HEALTH | you GARD 2X PELLETS 40 LB
I'd say the actual cribbing isn't what bothers me, so far my horse hasn't had a bad colic yet but he has coliced before and this only started happening after he started cribbing, yes i've tried the miracle collar and the nutcracker collars and he still was sucking air in with the miracle collar, not so much with the nutcracker but you could still hear him grunting a little bit, my problem with the collars where that the other horses would grab onto them, and my horse in on 160 ac now with trees and bushes and I don't want them to get caught on anything even though theyre leather and might snap I don't wanna take that chance he also became quite headshy from them because he hated having them tightened and got quite a few sores even with sheepskin coverings. He has lots of grass available with a new round bale every three days, and gets safe choice as well as hoffmans, and has a free choice salt and mineral lick.
The side of fencing where the gate and arena is, is hotwired but he finds away around it.
Whats really worying me is how much weight he losses in the winter time, and also his teeth he'll be 5 this year and in missing almost half a tooth from chipping it(he prefers metal to wood) and he is already showing wear on his teeth. And then theres the problem of alot of stables wont board cribbing horses, mine does but I have to pay for all the dammage he does which is getting $$.
I definetly wouldnt do the surgury unless all options are gone, and if any thing health wise gets really bad I.e constant colic, wight loss not gained back, and his teeth I would prefer if he could still graze by the time he's 20.
P.S I was looking for you gaurd but couldnt find anyone who sold it thanks for the link ^.^ also are there any other suppliments that could help?