I just follow the sighs at either end of the channel(NO WAKE) . IF YOUR CREATING A WAKE YOU ARE GOING TOO FAST !IF YOUR GOING BACKWARDS YOUR GOING TO SLOW---- I really dont know of any boat that can push past 6 knots without creating a wake and Idle speed is a vage concept as not all boats idle at the same rpms and speed for contol.
I pulled this of the net , it was the first site up ,its from s corlina but it gives the general idea
South Carolina Glossary of Boating Terms
GLOSSARY TERM STATE-SPECIFIC DEFINITIONS
HEADWAY SPEED The slowest speed at which it is still possible to maintain steering
IDLE SPEED When you see these buoys or signs with these words, they indicate a restricted boating area established to protect the safety of the public and property. In these areas, a vessel cannot proceed at a speed greater than that speed necessary to maintain steering.
NO WAKE SPEED When you see these buoys or signs with these words, they indicate a restricted boating area established to protect the safety of the public and property. In these areas, a vessel cannot proceed at a speed greater than that speed necessary to maintain steering.
SLOW-NO WAKE SPEED When you see these buoys or signs with these words, they indicate a restricted boating area established to protect the safety of the public and property. In these areas, a vessel cannot proceed at a speed greater than that speed necessary to maintain steering
SOOOOOOOOOOO------all that being said .do 3 knots and and callit good
