One thing I have seen in another mod (Analog Control Continued) is that you have the option of locking the steering in place. since stock SAS doesn't work even halfway satisfyingly, having this option would be really great if you have to fix some options manually (such as various BDA options)
EDIT: Don't know if it's meant to work like that but when I am in normal flight, mouse flight active and then enter and exit the menu, the aim is often stuck where it was and only unlocks once I restart the mod (P&P :P) not always, but sometimes, thus I think it's only a glitch, but exactly what I looked for and found by accident