Just timing the modes out isn't the best way to score on SM. For every mode you beat you can assign a 3x value on a shot for the rest of the ball. Beating the mode and putting the 3x on the right shot is key to scoring big.
If you are getting close to Battle Royale, then put the 3x on the right ramp to cash in 3 times BR Jackpots once you start it.
Or put the 3x on Doc Ock to get big Doc Ock Super Jackpots, if you are close to starting a Doc Ock multi ball.
You want to go into Battle Royale and Super Hero with as many shot multipliers as possible. Starting them with no shot multipliers will result in a decent score but you'll never get the scores achieved by playing out and beating the modes.
And once you beat Super Hero the whole playfield value is 2x.