I'm trying to wrap up my arsenal before the leagues/regionals this fall. Here's what I have and what I feel they are best on right now.

Heavy:
Rising
Kinetic Energy

Medium:
Pin above bridge Power Machine
Mean Machine
Pin above ring Power Machine

Light/burnt:
Kinetic(if third layout works)
Equation
Phoenix(also spare ball since I can throw it straight with ease now)


I guess my next choice is going to be solely dependent on whether the Kinetic works for me next week or not. But in the meanwhile, early opinions never hurt.

Should I go with another Heavy oil ball? Should I give myself more options in the Medium range? Do I really need a possible 4th light/burnt ball? What do you think and most importantly, why?

I'm trying to stick with 9 balls max.
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High game-300
High series-796