I know I've seen somebody on here post a solution to this one, pretty sure it was a @solver or @SNestor video (I'm seen a bunch of them and for the life of me couldn't find the right video on either one of your channels, sorry gents). I've got a porch ceiling where there is a visible gap in height between the soffit and the ceiling. If I recall, this is chief adjusting for the rafter framing, you can see in the DBX is 9 1/4." I've tried playing with both the rafter size and many of the fascia settings and I can't seem to get them to match up.
Hopefully this is a softball for somebody, thanks in advance!
OldBarnDesign's post in Roof framing causes small gap in ceiling on porch was marked as the answer