I find that fitting a hackamore of this type or a Little S needs a headstall with shorter cheekpieces, and nice firm leather, maybe double thickness. Some headstalls only have a cheek adjustment buckle on one side, better to have one that adjusts on both sides.
You can't necessarily just go down to a cob size either because the browband needs to be long enough to help keep the cheeks out of the eyes.
The nosebands need breaking in, at first they are stiff and too "straight" which causes a pulling outward away from the face and forward - again into the eyes. Oil it, bend it, flex it, limber it, get it wet and form it, if it is a nylon rope noseband warm it up with a hairdryer and form it and maybe cover it with vetwrap. Terry Myers uses a piece of flannel from a shirt on the nosebands of his sidepulls.
If you and your horse work well together with a hackamore, it is worth the trouble to fit it well.
PS. A rope hackamore with a properly tied mecate IS a bosal.
Last edited by anndankev; 11-08-2010 at 06:47 AM.
Reason: add on