I'd go for the latter. Unless there's any specific problem you need to solve, but FWIW I never heard of any related to that component.
All the half decent ones do - depending on the boat size, obviously. BTW, while it's true that hydraulic thrusters are way more common on 80+...
Sorry, I don't know the details. I just picked a well known video as a proof of concept (so to speak), aware as I am that most folks don't know...
