I would feel safe about making another felling cut three feet up from the base of the trunk now. I deal with this sort of thing all the time as I said in my earlier post....most of my trees end up this way because it's so heavily wooded where I cut. Juts take it slow, pick your direction and make the tree go. Putting a rope and come along on and pulling tension before hand will help persuade it to go. It wont stand up like that forever. Many times I have a tree come down like that, and I end up cutting out 3 or 4 three foot sections before the tree is down. I envy people who cut and drop their trees into an opening or field. Hang ups stink but it's all part of cutting down trees, at least around here. Good luck, and be safe.