My go to ball is the Snell MTB Black (great ball at a great price). Characteristics and performance are comparable to the below balls I also play.
I’ll buy the ZStar (buy 2, get 1) and TP5x (buy 3, get 1) when they’re on sale. I also really like the ProV1, but only play them when I get them as a gift.
I don’t see anything wrong with your bag. Maybe just continue messing around with longer clubs until you find something you really like?
Not sure an extra club in your scoring clubs is necessary either. I think the best way to tighten up that end of the bag is working on flighted shots.