Here is a mockup of what I'm planning on doing.
I have a couple more questions on my stair treads I plan to glue and nail (ring-shank) both the treads and the risers to the stringers.
1. Stair treads and risers how tight to the skirt board should the treads and risers be? If they are suppose to be tight I'll glue and nail them too. I'm worried that if the treads and risers are tight with the skirt board there maybe flexing that will separate the skirt board from the drywall.
2. Should I put drywall corner bead on before I do the final install of the skirt boards?