fs5
if your only running fast on a lightweight boat with a single person that could be the case
but when your running 2 people and going slow it will be bad.

how often do proper race boats go fishing and trolling ? not very often.
now considering the boat is loaded with fishing gear and a couple of biggish blokes, this boat aint going to be doing no 50 plus miles per hour like he thinks and then
be able to run real slow with a lightened flywheel.