Remember to turn your threading draft upside down, that way harness one will be the furthest away from you. I put the threads under the harnesses and hold them with my left hand. The I pull out with my right hand, all the way to the end, bend and push through the heddle. This is the slow part, because I double check every repeat, but time spend here will save you much angst.
I'm about 75% of the way done. I tied slip knots in one inch sections so they'll be ready to tie on..