Thanks for that .. I'll wade through the details over a coffee or two later this evening.
However, the question still remains re bank. Your suggestion that
For minimum drag (no aileron or roll spoiler deflection) at VMCA, then you would need 5 degrees bank
doesn't make much sense to me. If you are after the standard bank angle, then that will require an aileron input.
I might be just a bit slow but I can't infer from your post if you target some bank or just go with wings level regardless of speed schedule ? I have some difficulty with any suggestion that wings level is the way to go when one is back near Vmc ... a 10kt margin can get swallowed up by the effect of no bank pretty quickly.
While this will vary with Type, some of the 4-engined machines can see a 40kt plus increase in Vmc if the bank is allowed to go the wrong way .. Real world Vmc is very sensitive to bank angle.