Well, I've never heard the ground "reason". Could be a reason I suppose. |
Most people that I know/talk to switch to keep their horses mouth fresh and not accustomed to one bit 24/7.
I was struggling to remember where I had read the ground reason and I found it! Also discovered that my memory didn't remember it all correctly.
But it is by Dena Kirkpatrick talking about having different bits for running your horse for competition, based on the ground, and based on the rider.
I also agree about changing bits to keep their mouth fresh. I personally do that at home, changing the bits I ride with at home. But I always use my Jr. Cowhorse for competition and keep that consistent. (So earlier I wasn't saying that I myself change bits for competition, but was just trying to explain a reason "why" for those who maybe do.)
Although I have never heard this I can KINDA see the logic, although I would like to point out that you claim this is said and used by pro's, there is a big difference from most of the ones that switch out bits all the time. I think what I have bolded is really why people constantly change their bits.
Not all pro's change their bits. Wasn't trying to insinuate that.
I think you should do what works for you and your horse. So if it works to change bits, do it. If it works to stay consistent, then don't change bits.
But I do agree. Most bit changing is because the horse is running like a maniac and they're trying to find something to artificially fix it.
As I was trying to find my original source for the changing bits with the ground, I found a this video relevant to the discussion that was interesting.