Now I have 44's, not 41's so your results may vary.... But,
I have found AA#9 to be about as versatile a powder as I can ask for with my 44 mags. On the low side it relatively tame, and yet on the high side can deliver top level performance nipping at the heals of 110/296. I found that my 4" 29-2 shot tighter groups as the charge increased while pushing a 200gr XTP. Very good magnum pistol powder IMHO and much easier to procure than 110/296, at least in my locality