Just going back for a mo, to the discussion about the highest load, rough water, or high power on flat water.
You wanna see what happens to a brand new Mercruiser Bravo 'gimble' when used in anger/rough water!
That's a part that is made literally in the millions, and generally fine. But Merc state quite clearly, if you're gonna be doing over 60, fit external steering (Latham/Mayfair/Imco) as the tiller assy won't take it.
I reckon the answer here is, go with what ever you're happy with.
If an old plastic numberplate bolt through your std Merc tiller does it for you, then that's the kiddie to use...If you aint happy with that, then upgrade. end of.
Now we're all appy innit