Join Date: May 2007
Location: Fairbanks, Alaska
I do not use a stud chain on my stud except in halter class - I use a rope halter - they are very effective. Have you tried rope halters?
What makes you say that you need a chain on her (did someone tell you this, or is she really pushy with you?). Usually some additional groundwork activities will really fine tune respect and responsiveness from the ground and remove the need for harsh tools. There are some great videos and books out there that can help you with the ground work. You could also look into trainers in your area to get a quick lesson or two (that is all it would take, and a few minutes a day for a while).
I agree that chains can create headshy horses. How old is your filly?
To answer your question, basically all of the ways you described (and more) can be used with a stud chain - it depends on your preference and what you are trying to accomplish, as well as what seems to work best with the horse. In halter, my chain goes in one side ring, over the nose, through the other side ring, and hooks to the higher ring on that side. It is different for mares and geldings though.