I think what Steve is referring to is Complex Profile,
which is what we are all talking about, I believe.
Vertical stretching does not work well here with Horizontal siding as what starts out as, say 1x6 on a 8' wall, but vertically stretched to make a 9' wall, will cause the 1x6 to be more like maybe slightly less than 1x7, even worse on a taller wall. That's why you need different version of this type of wall.
A stretched wall will not match up in views of both, not that you couldn't do it, just looks wrong in 3d, elev and section.
Also, you might want to cut the first siding board flush (or better yet slightly angled) at the bottom for "drip-edge" and hang down a bit as a little more correctly shown in this "improved" version.
So even my Tyvek, (paper) under the siding has to be different than the either of the two fills I've used for siding and the shear ply fill (and it different than the stud fill) or they will join.
Lots of discussion on plates if you search, but here goes anyway.
The plates start out as one fill, then you use the split tool to slice it diagonally twice. Before you save, make sure to change the fills that touch to something different. It's ok if the points touch, just not the long sides. This is true for all the fills of C.P.s
In my example, only two different fills are needed for the plates, but the
one touching the stud can't be the same as the stud.
A bit confusing as first, but you'll get get if I
haven't muddied this up too much.
lec