Well first off it's not a snaffle. What were you looking to use it for?
I personally prefer a three piece mouthpiece but the mouthpiece is alright, I like that it has come curve to it instead of being straight. It has a bit of gag action to it, although compared to come it's pretty mild. Overall it doesn't look like a bad bit.
I wouldn't put it on a youngster but on a broke horse it'd be fine.
That was part of my wondering- the place I found it at called it a snaffle. Some of it and how it would work is similar to a snaffle, but not everything. I like the short gag to it and the curve as well. I have a few horses I want to try it on, just to give some quicker cues than the D-ring snaffle I have em in. I have a feeling it is going to be a pretty decently mild bit. I just want a little more 'lever action' if you know what I mean. Some quicker release. I love the design-the gag part is the only part I am weary about. But if worst comes to worst and I don't like how it moves, I'll just put some rubber stoppers in it to shorted the gag.
Never used one, never even seen one, but by the looks of it it would provide some leverage even if mild, particularly if you have a chin strap on it that was on the tight side. My way of thinking with bits is to start from the basic and move out from there, so starting with that, 1) what do you feel the horse needs that an ordinary snaffle won't deliver? 2) could you achieve the desired improvement with a change in training rather than equipment? And so on.
Not really an answer to your question about the bit, I guess. I like the look of the copper mouthpiece though.
The horse I am wanting to use it on does very good in just a D-ring. I just want some quicker reactions. I am very light handed, and he is very light-mouthed, so I'm thinkin this one may work. Training-wise he is wonderful, I just want some quicker reactions. I probably wouldn't be using as an every day bit, but for team penning I think it would help out some.
If you're just looking to move up in bits to have a little more oomph then I think training could fix anything that the snaffle isn't delivering. If you were say barrel racing and were looking to move up as when your horse got amped up they needed a little more this would be a nice bit.
Overall I think it would function quite a bit like a jr cowhorse bit.