I have the long leg of the spring hog ringed onto the door frame when the keeper (I use a small chain link) is getting welded and while I weld the hinge mount. This holds the door at a little less then a 45degree angle which "loads" the springs once the door is swung inside and the door lock bars in the corner are welded in place. I use the small chain link because it is slightly soft material so I can grab it with pliers and bend it up or down so as to match the spring tension to each other for best door closing performance