There are MANY strictly barefoot trimmers who don't shoe that do amazing work. Just b/c they are a trimmer and not a farrier DOES NOT mean that they cannot balance a hoof correctly.
That being said, the chipping means:
1. Too long in between trims.
2. Need to put more of a roll on the hooves.
In the winter when hoof growth is very minimal my horses can go 8-10 weeks between trims. In the summer, I have to do every 5 weeks to keep up with them.
You HAVE to have a good competent trimmer who can balance a foot correctly if you want a chance at all. It's MUCH harder then it sounds to find one. Photos of your horses feet would be a help here.
Nutrition also plays a huge role in hoof health. Get your horse on a good, complete, low NSC diet. I saw a HUGE improvement in hoof health when I did my research and switched my horses to a good, quality diet. What is your horse eating now?
There is also a product that I have recently been made aware of and I have seen the photos and effects it has had on a friends horse. It is called Simmerdown. You can order it from horseherbs.com. It has improved overall hoof health, hoof growth and frog/sole improvement on her horses. I am going to order some for my thin soled, thin walled mare and give it a go. Even with correct trims, she still cannot go barefoot while in work. She just can't. My Paso Fino... yes. He goes barefoot without a problem. Hoof health is also genetics and my mare just doesn't have it. She may just be a horse who needs front shoes. If that's the case, I'm ok with that. You have to cover all your bases and then go off what the individual animal is telling you. Not every horse can go barefoot. There is no win-win solution for every horse . It depends on the individual animal.