I love my Myler bits. I don't have any that they refer to as ported; all but one are jointed with a barrel roller and the ones w/o the barrel are simply snaffles. I wish I had one with the ring type roller to see which mine preferred. The western bit is curved with a short shank and my horses all do well in it when I am riding. My driving bits have an angle off the ring and then long and straight. The shank is slotted so that the reins can be adjusted for the driver's skill and ability. If necessary the reins can be on the ring directly. I was taught the shank was for the rider not the horse. The shorter the shank was for those with quicker rein pick up or heavier, more active hands and the longer for those with a soft, slow rein pick up and quiet hands. The shape of the shank also has an effect. Straight shanks cause quicker reaction to the bit, curved shanks the bit is slower to react to pressure applied. Just adding the barrel mouth piece is raised above the side and allows room for the tongue similar to the low port drafty linked to. They all have swivel sides. The barrel roller snaffle is what my English bits have as well as my training bit.
Last edited by QtrBel; 03-20-2016 at 03:17 PM.