Here's something interesting about Baywatch scoring that I don't believe is well known.
If you make it to Earthquake... the jackpot bonus amount for shooting the Left Ramp depends on how many of the following modes you successfully COMPLETED:
CPR
Chopper Rescue
Driver Trapped
Shark Cove
Tidal Wave
Each time you complete one of the above modes, the jackpot value for Earthquake increases by 20 Million.
Jackpot = 50M + (20M x Modes Completed)
It looks like your bonus can be as low as 50M per jackpot... but as high as 150M per jackpot!
So, not only do you get a completion bonus of 50M each time you complete a mode, but it will also increase the Earthquake Jackpot by 20M. A little extra incentive to complete those modes, huh?
By the way, I watched the PAPA tutorial video and it appears that they physically disabled the Left Ramp lock. By doing this, they completely cheated themselves out of potentially huge Earthquake jackpot values!