It’s been a while since I loaded 9s, but generally love the AA powders. I have some 2,5,7 and 9. It’s really clean burning and consistent. # 9 is great for 30 carbine.
I use aa5 for 9, 40cal and 45, great powder, meters excellent. I tend to load low on all my handguns, less recoil just as accurate and now with powder shortage helps to use less.