Mad (Flt) Scientist
Most of us haven' t a clue on the actual relative effect on Vmca banked by moving the cg from forward to aft limits.
My experience in this area has been in the determination of fore and aft limits by handling throughout relevant flight envelopes..
Determining the forward limit was the easiest because the most critical I found was the flare for landing when it was all too easy to run out of elevator power with control against the rear stops and then needing that extra little bit which was not available. One would back away from that cg position somewhat to provide for better flare when setting the forward limit.. But I digress.
Could you surprise us all with a calculation of the delta IAS on Vmca for a typical asymmetric heavy using 5 degrees of bank covering the full range of cg fore and aft?
If that is too tall an order how about a WAG?