Perhaps a better option would be for an escorted service across Breydon, whereby half way through slack the escort boat could escort a convoy of hire boats from North to South, whilst a similar boat performed the service the other way around. this could be run similarly to the bridge pilots at wroxham or Potter Heigham, and while it would not be compulsory, could be factored into charges if someone ran aground, ie well since you decided against boatyard advice and did not use the service, then ran aground, we will charge you for your recovery, this would also maybe provide a tow service for yachts without engines wanting to pass through - in a similar way to the come along in Arthur Ransomes Coot club.
organised by the hire boat companies it could provide seasonal employment for several people, and a valuable service for those hirers new to the broads and uncertain about crossing Breydon.