Woodsy,
This is a very nice explanation and I understand and agree with it. I also believe that visual estimates of speed on water are very unreliable (I don't have a research reference for this, I remember reading something about it years ago, no fixed points of reference, etc).
So the followup question is why do we hear quotes from enforcement officers in other states that say that the speed enforcement is working? Are they using the more expensive radar? Are the courts just accepting bad radar readings because they can't get anything better and they just want to support the effort to police those lakes?
I know you probably don't have an answer for this because I'm asking you to explain the thinking of another person, however these two points, affordable radar doesn't work and officals claiming water speed limits are enforceable, are talking past each other and creating confusion (at least in my mind
).