Just a complaint on USCG comms. I hear the Louisville sector here in Cincinnati on channels 16 and 22A. The operators speak so fast that they are not understandable at all. I was an Air/Ground Radio operator in the USAF and have been an amateur since 1970 so their comms really bother me. At times I want to send a letter to USCG telling them to slow down and speak distinctly. I'm sure the tow pilots on the Ohio River would like to hear the warnings to mariners more clearly.