I was able to beat the game with +6 Balls +4 Shots Max ball Power, +6 Shot Power, +14 Over Charge, +5 Charge Shot, +4 charger.
Reduce the number of over charge once you are ready to get the charger to +4 because they are less useful with the better charger. I used the extra points to buy the charger. Grind.. played about 3 hours
It would be better if the score was based off your total shots taken for the round. Not just four shots per hole. One bad hole, five shots plus, after eight hole in ones gives a silver medal.