here is a trick i use to inch my way up awkward leaders that might be too steep to do a conventional limb walk and no favorable TIP to be able to position myself with 2 climb lines:
take a 1" loop runner, (i argue every climber should go into the tree with at least 2 or 3 on their saddle cause they are so damn useful for holding cut pieces, redirects, etc) and put it around your feet. I keep the 2' and 3' lengths on my saddle all the time, so i just double it up to make an approx 12" loop, next put a half twist in the loop, so it looks like a figure 8, and put a foot into each loop, with the crossover happening between your feet. with proper body position, you can press your feet against the trunk, the loop runner keeping your feet together, and inchworm your way up, when you get good at it you can find the sweet spot for loop length so it will actually cinch onto the wood giving you a secure work position.
you work your way up the leader by hopping your feet up, then flip up your lanyard and then repeat (kinda like spiking). it sure helps for those really awkward spots where you have few other options.
i can post pictures if anyone wants to see what i am describing.
-Steven