In my opinion the safest route for all boaters who are reading this thread is to leave the ESC alone. The hard work to figure out what is needed in the ESC is already completed for you by the manufacture after you hand over your money.

If you want increased reliability, make certain the power is available from the battery pack. Demanding setups must run 2p packs for excellent maximum discharge rating. This will not only protect your ESC, but everything else.

To me there is no reason to mess with the ESC. Plan your builds accordingly. For the others who wish to experiment, understand the risks.