Got to have the effect of squat slowing you down any time you try to move too fast on a canal too, and then that remarkable difference when you get out onto a decent sized river.

Unfortunately it doesn't seem to want to load for me so I can't see whether it's simulated the fun of single-handing locks...

(Bought mine because I was living in the mirror timeline, now on sale so I can stop acting like I'm retired and do some actual work rather than pootling about at 2mph all day...)