The Red Jet 4 now seems to behave in a more realistic way, now it goes sideways too
However, there are some minor issues.
The water jets respond far too slowly, as with many of the other ships' propeller pitch in the game.
Shifting the thrust on a water jet is almost instant; in the game it takes 'forever'.
Also, when you approach the dock and pull back on the controls, the boat loses speed too slowly.
I've worked on a 35 metres long HSC myself, and it lost it speed much faster; I'd say in half the time.
BTW:On other ships, the propeller pitch is much too slow, I'd say double up the speed and it'd be more realistic.
I currently master a 80 m car ferry and the pitch uses about 10 seconds from from full speed ahead to full speed astern.