mom-6

I know people ask for help on doing binding all the time, but this one is a little different.
I'm wondering if there's a way to do this that will look 'right' or if I should just take the easy way out and trim off the points and have triangles at the edges instead of squares.
I like the design better with the squares and the sawtooth edge but I'm not happy with the way the binding is so lumpy at the inside corners.
This is being done with the packaged wide double fold bias tape.
Any helpful hints would be appreciated!