Right now I ride my mare in an Eggbutt and a D-ring single jointed snaffle (Eggbutt on her English bridle, D-ring on her western one). But I met a girl this summer and we went cross country schooling with her last month, and as we were walking through the barn, I noticed that nearly all of the horses had some variation of a French Link snaffle, instead of a "regular" single jointed one like I used. I didn't get to ask her about it, but when we got home I Googled it quickly, and found a compare-contrast picture that claimed French Links where the better bit because they provided even pressure on both sides of the mount, while in a regular snaffle, the pressure is uneven because one side is "ahead" of the others.
Here is the picture:
What do you think, or do you know anything more about this? I would like to try the gentlest bit possible on my mare, because she has a very soft mouth, but I have noticed that sometimes she does seem to not totally understand the turning cues, like they are being blurred, (and she isn't green or anything), which would make perfect sense if what this picture says is true.