Hi Scott,
First all of thank you for your
kind suggestions

.
As Robert said we are starting the improve the division airplanes. So, give the guy a little break

.... He is working a lot on improving the airplanes, and if you see how the new main division airplanes are, then you can expect the same quality and improvements for the division ones.
I flown the 747-400F some times on the FS2004 and I never got that behaviour that you tell here. So, all we can do is to accept your comments and double test the airplane to see if that happens or not. But, anyway, we are re-structuring them so expect a new brand model on 2007.
And more thing, I strongly suggest that you don't test new airplanes using ProPilot because normally is a good probability to crash

... When you are certain that you handle the airplane good (in this case the airplane dynamics fromt he installed model) you can use it on ProPilot

Regards and safe flights!