OK guys, I made a slight adjustment to the Hover modes. I made an unrelated correction to the Joysticks to remove the deadbands and it made the Heading drift too much in Hover mode. I've added in a Heading dampener, a bit like a Heading-Lock control to correct the problem. The Apache, Comanche, Blackshark, Ka-52, and Havoc all in reality have a Heading-Lock control in the control system. It now engages when you are in Hover mode.
I also changed the download link at the start of this thread to one that includes ALL of my upgrades to the code. The list is getting longer and longer.