So what's wrong with your CSS? I don't see where the problem is. 53 pounds of KE is plenty enough to cleanly kill elk. It is not exactly hard to get a hot elk, bull or cow, to come within 30 yards. IMO you have plenty of "punch" for elk.

The thought to shoot at an elk past 40 yards would never even cross my mind. I prefer less than 30 yards. Besides most of the time I can't even see the elk until they are within 30 yards unless I just happen to be above timber line or a small opening. It's great to practice out to 70 yards but a shot that far on an elk needs to stay in the firearms season.

Having said all of that if you want a new bow then I am certainly not going to be the one to say no. I shoot Parkers and they are very well made bows with great people standing behind them. I can't comment on the rest though, except that I will never own a Mathews but that's just my personal preference.