I personally believe the ISA instructor is like the Roles Royce of Instructors Internationally and while it looks lovely is not fit for purpose in everyday use in Ireland today. I think we need to start building Ford Fiestas and Toyota Corollas.
Our standard Dinghy Instructors have a huge amount of Pre-entry requirements that far exceed the actual needs that they are required to fulfil their function i.e. teach people a basic introduction to our sport. While it is lovely to look at the multi faceted skills of the instructor and how they have achieved life long skills which they can take around the country or even the world. Look at the core function of what they teach / facilitate and then build an instructor to compliment it.
My recommendation is a Club / Class static instructor who can sail to a level that facilitates them demonstrating the skills they need to do properly - it is not necessary to Spinny and Trapeze to teach a Pico how to sail a triangle or know 70% or more of the theory paper based on Yacht Master Navigation to teach a sailor about basic nav.
The 5 day instructor course and all its requirements in the majority is tailored to a young teenager graduating from their sailing course before they go to college and is scheduled around the school timetable. The whole system negates Adult Learning, Life Experience, Professional Assimilation and requires an international sailor - retired school principal to go through the exact same system as the 17 year old who has been sailing 5 years. There must be an assimilated / fast track system for prior / adult learning and this too may be endorsed that the instructor is a Club / Class Instructor only and not the same as the Roles Royce Instructor with a licence to travel.
Simple suggestion call the DI Roles Royce as is - a commercial endorsement and beneath that facilitate a good sailor able to instruct after a basic 2/3 day instructor course to run up to Basic Skills / Improving Skills.