Much as I hate to say this, the farrier who tore the ligaments in my foundered horse's front legs was AFA certified and has had articles in the Farrier's Journal, in the past
He didn't ruin this horse on the first trim, he waited until the third trim because he thought all his fancy papers meant he knew more about my horse than the vet or I did.
My vet was livid when he looked at my horse's fetlocks and even more livid after he did the ultrasounds. First because the farrier was AFA certified and he had used this guy before.
Second because he had ok'd this farrier, they were here together, discussed how the horse needed trimmed immediately and in the upcoming months, and x-rays were viewed.
I did everything right, in the correct order, and still ended up with a horse that would be knocking at death's door thanks to the well-schooled farrier.
I later learned this guy has seriously lamed at least one other horse --- a high dollar hunter jumper---------------------
It's a shame when a person needs such serious help for their horse, naturally relies on the papers of the person they hire and still end up with a train wreck that maybe the horse will survive, and maybe it won't.
Ok, back to the business at hand of trying to help the horse this thread is about.
Even though I have mentioned this before, I wanted to interject my experience regarding a farrier papered past his finger tips, to let folks know those papers are not always the be-all-end-all for quality help for a horse