Of course, you can find others that think that a shanked bit or a curb chain or some such device will function like an emergency brake and provide you with some control but it'll only be temporary until such time that your horse decides to simply go through the device.
I honestly have to disagree. I've been riding in curb bits for 20+ years and have never found the control to be "temporary" or had a horse "go through the device." It makes me wonder if someone who says that actually has ridden in curb bits. Because if they had, they would know you have plenty of finesse and it's not just an emergency brake.
I think of a curb bit as walking softly but carrying a big stick. It allows you to have finesse, collection, and ride on a loose rein with trust you can bring the horse back to you at a moments notice. The horse respects it, it makes neck reining a little easier and I can just cruise along with my reins mostly loose. And if I DO have a forward horse that needs more control (like one in a hurry to get home) I may have to use more contact that I would like but I never loose control of the horse.
I hate trail riding in snaffles......my experience is horses will either root or star gaze with them. I don't get that with a curb bit, it's like the horse automatically knows to tuck and give to the bit.
It's hard to make recommendations to the original poster without more information. I sort of get the picture of a high energy horse (or a horse that hasn't been out much lately) and they are pretty excited and forward. If the horse DOES stop, even just for a moment, to me that horse is responding to the bit. It might be the horse needs to run around and get the "fresh" off before they can settle in and be a good trail horse. For instance, if I haven't ridden my horse much of the winter, the first few rides after some weeks off, are quite high-energy, more than I actually like! But after some good 2-3 hour rides the horse eventually settles back into being steady and calm. It might be good to turn a horse like that out in a safe turn-out area to run around, or lunge or ride in an arena, whatever gets the horse nice and settled for the first few trail rides until they relax more. It also might be that the horse is fairly relaxed and they are just a forward type horse and no one ever taught them to just stand there.
But I really don't know what the OP's circumstances are.
PS. One of my rules for trail riding that I try not to break is that I do all my faster gaits away from home, and always walk towards home. That helps prevent barn-sour behavior. Some horses will be barn sour anyway, but at least you are not encouraging it. I don't know if that factors in with the OP, but thought I would mention it.