Did notice that he left the original inner cowl piece in place installing the new one over top, does that look about right? and why not remove it as well?
On Woodys web site you can see he replaced both inner and outer.
...Woodys web site Pic... He is a true crafstman, Im still amazed how he trimmed his door skins to get the body gaps just right.
...Woodys web site Pic... Under most of his pics he gives a brief description. Very helpful.