Gary wrote:
Better still, rip the tongue off the plank that will be next to the nosing. Then using a bisquit joiner, cut slots about 10" apart. Attach the plank and nosing with bisquits (the smallest ones,#10 I think) and yellow glue then clamp to keep the surfaces perfectly flush. When glue is cured (24 hrs.), install as one unit using your floor adhesive; no need for nailing. Yeah, it is overkill BUT it's your house so go for it!
Yeah, I thought about doing that too, but I'd also have to cut the groove off the stairnose so it would be flush with the plank. However, by the time this alternative occurred to me, I had already precut all of the stairnose and planks for the stairs. How to properly fit the stairnose to the adjoining planks was an afterthought, so I'm stuck with my current dimensions.
If I were to do it all over again, I would definately cut the tongue off the plank and groove off the stairnose and join them with bisquits. Hopefully this thread will lay out all of the alternatives for others who haven't progressed beyond the point of no return.