"Greg" wrote:

I have NEVER actually heard someone use it in a passing situation and I
doubt the
PWC operator could hear my horn.

I was just reviewing the rules myself about when to use the horn to indicate
that
one will be passing. I'd bet that most recreational boaters out there would
think
you were either saying "Hi" or else being rude.

Perhaps we need some universal types of hand signals for small boats...

And where you blow your horn there is a good change you'll get a "hand
signal" in return.

Another idea I think is overdue is establishing a speed somewhere between
"slow" and "safe normal operation".

You're suggesting something like ??:
Slow = Very slow. No wake. Not on Plane. Probably about 5 or 6 MPH.
Medium = On plane but not WOT
Safe Normal = Anything you want including WOT, as long as it's "safe" and
under control?