I have done many timber steps making a standard U shape and stacking them to make the steps. I now need to make some that are more complicated and wanted to hear some 'best practices' before I start. These steps are wider and have an angle in them. For example, 4' of the step is straight than it angles off at a 45 deg angle for another 3-4'. I'm thinking they need another tieback in at this angle. Another option is to fill in the lower step first and use the fill to hold up the step. Thoughts?