Update time. Ended up moving one of the plants to it's new home, outside.
That opened up a bunch of room for me to gently bend the main stems over away from the lights.Used some cotton string on plants themselves, some plastic zip ties on the tent poles as kind of pulleys, and used the tension of the rope tied to another tent pole to hold the plant in place. I have seen some new trichomes on one of the big plants since moving to 14:10 so I think they are going to finally cooperate.
Thanks for everybody who helped in this thread, it's wicked appreciated.