Hydroseeding extreme slopes. Steep cut bank.

Hydroseeding an extreme cut bank in a remote location. Wood fiber mulch. This slope is near vertical. There is no erosion control for anything this steep, but an attempt at a vegetation cover is a wise idea. Hydroseeding is the only method of application to deliver seed to this target area. Wood fiber mulch is heavy duty and grips well. It last longer than recycle paper or straw mulch. Bio-directional spray pattern gives 100% coverage. This eats up more material, 20 to 50% more than flat lawn area. Seed and material prices...OMG WTF? I am reconsidering global warming.