Honestly, I have the comfort snaffle, and it didn't affect Cowboy at all. He treated it no differently than anything else in his mouth, except for the fact that he would lean on it terribly. So took that out and put his slow twist back in (don't wring my neck, trainer recommended a wire ... I said no.) and no more troubles. I might try it on Diamond, though - seems with her, the softer the bit, the better she goes...
Remembering of course the level system. The idea behind that is to bump the horse up and get more tongue relief through the levels. Level 1 comfort snaffles are excellent for starting a colt in. Level 2 is a little more tongue relief and more palate pressure. Level 3 is for experienced horses, maximum tongue relief, and lots more palate pressure.
I just wanted to make a small correction. As you move up through the bits and give the horse more tongue relief you are giving them more bar pressure, not palate pressure. Just thought I would correct that for those not familiar with the bits. Most of the Myler bits are not known for palate pressure. Even the #33 they say has very little to no palate pressure, depending on the mouth conformation of the horse.
I really love Mylers for my trail horses!
My Fox Trotter's favorite mouthpiece is the #33. She doesn't fuss with it even if I have to use more contact than ideal (like cantering). My gelding rides in well in anything. I am slowly gathering a small collection of different mouthpieces and shank lengths, mostly off of eBay. For those who want to try a Myler but don't have $100 to spend, try keeping your eye on eBay. You can frequently get used Mylers for about 1/2 the price of new, and sometimes even a new one for 1/2 the price of new! It takes a little patience to keep up the search for the bit you want, but that is how I got several of mine.
So my favorite mouthpiece so far is the #33:
My Fox Trotter really didn't care for the comfort snaffle with no port:
She fussed with it a lot. Which is kind of funny because many "gaited bits" like Robarts and Imus have a similar mouthpiece with no port. But apparently my Fox Trotter is a tongue relief kind of girl.
I JUST got in a forward-tilt mouthpiece but haven't got to try it yet:
It looks like it should be a mild bit, but I guess I am a bit confused about how the forward tilt port functions. It doesn't have the contour their other bits have either, so I don't know how that affects the horse. So when I found it used on eBay I figured I would scoop it up and give it a try. I mean, most curb bits don't have the contour the Myler bits have anyway, however, for Myler to design the forward tilt without the contour, there must be a specific reason. Because their bits are known for contour, right? The only info about this bit I could really find on the internet is that it helps break the horse at the poll. But any curb can do that. So I am a bit curious about how it functions, which is why I bought it to try it out, lol!
I would kind of like to try a combo bit for my youngster but they are so darn expensive that I haven't broke down and bought one. I like the idea of him having nose pressure along with mouth pressure because he is so green and not really used to a bit. I am thinking of rigging something up myself with an existing Myler bit. Not sure how well that would work though. The trainer I sent my colt to used a "combination bit" on him (probably not a Myler) and only had him going in a snaffle for a week or two before he sent him home to me. So I dunno. I don't feel my colt is 100% comfortable or understanding of the bit and a little nose pressure might click a light bulb in his head or something.
I also wanted to say what attracts me to the Myler bits is that they Myler folks actually study and put a lot of careful thought and planning into their bit designs and how each and every bit affects the horse. And they are built for the comfort of the horse.
I tried a TON of bits on my Fox Trotter, all sorts of snaffles, curbs, different mouthpieces, etc. And she did fine. She had a tendency to fuss, but she did fine. But when I found the #33 it was like it was made for her. No fussing, complete happiness for horse and rider.
So that really made me a fan. Not that a horse can't do well in another brand of bit. Obviously they can. But I really feel like the Mylers put a lot of careful thought and care into their bits. So that is why I am attracted to them.
That and they make a lot of very mild curb bits. Which seem harder to find now a days. The HBT shank is a very mild shank as far as curb bits go. It allows you to ride in a curb without having the monster 7-8" shanks that most western curbs have now a days. This lets me "go milder" while still riding with a curb. I really dislike riding in snaffles.