I will start this off saying I am 100% of the opinion that a stronger bit should never be used as the first port of call, and that as a general rule, if the horse can be trained to go in a snaffle for everything, that is ideal. However, I do wish I had not been so married to that idea and so convinced it was the only way by other people. I’ve had my lovely, but very strong pony for 11 years now. She happily goes in a snaffle for dressage, a relaxed trail and just plodding about the place. Fast work, jumping etc, whilst she can be ridden in a snaffle, I’ve often had to use stronger hands than I would like, she isn’t straight and going for a gallop at the beach, on a trail and the like always had an element of uncertainty. Will she try to take off? Will she pull up? Do we have the space to deal with it if she doesn’t want to? And yes, there’s alot of training that has gone into her, at 20 years old she just is how she is, and I will never ever get rid of her instinct to go strong and fast.
I recently purchased a port mouth kimblewick for her. The difference is astounding. She stays with me on a light contact, we can gallop and I know she will pull up, she is straight and not a hint of ducking and spinning through her shoulder. Whether she prefers a non jointed mouthpiece or it’s the slight poll action, I don’t know but suddenly fast work is FUN and worry free. And she seems very happy and quiet in the mouth.
So in conclusion, I would never opt for something stronger than a snaffle from the get go, but maybe sometimes it IS the answer when used correctly. Horses are funny creatures with their little preferences.