Attitude, confidence, and ability = penetration, shot placement, great memories.
There is no one here on this site that can give you the specifics of what will take place on your hunt with your particular bow and set up.
There's only a lot of opinions, from what I've seen, on here, many have said "50# is minimum" more of them like 55# and 60#, I personally don't have any idea what 5# or 10# more would have for an advantage on an elk.
I will tell you I have never hunted an elk, so that makes me or in some circles, takes me out of the picture. Elk have bigger bone, bigger lungs, and bigger heart, it doesn't necessarily mean better target.
Like others have said " shot placement", and some will come on and probably say " distance of shot", the equipment to have is superior to some that have used less for elk hunting, I would think that you would have at least a 550 gr to 600 gr arrow, with that particular bow for elk hunting. But I also recommend the best two blade you can get, but like I said, I have not elk hunted, but I've done a lot of research, and shared a lot of PM with those that have. And the things mentioned above, are the things that were mentioned the most to me for my experience to take place.
I think sometimes we get "wheels" out the picture, and we overcompensate by thinking
"power", and I only say that, because this was my attitude, until "I" changed it. It's not about what you have, it's how you use it effectively to accomplish the journey.
Some can bounce back and forth from wheels to traditional, I am one that cannot, when I got rid of everything except for my sticks, that's when;
Confidence, attitude, accuracy, consistency all started to take place because I trusted in what I had and what I could do with it. Because my bow and my arrow became an extension of myself.
Carl