He said the scheme should not be compulsory during its roll-out and should "start with a high degree of evaluation of process".
"No principal would necessarily think it's a bad idea to have different levels for principals and teachers, but it's the details of the initiative and how it will impact schools in the future."
Mr Hodgkinson said policy regarding the scheme was released ahead of the Budget this year and there had been an industry group helping to develop the programme that included principals, unionists and representatives from the New Zealand Principals' Federation.
"The problem is that they have been unable to report back to us. There has been this vacuum and whenever there's a vacuum of information, nobody actually knows what's going on, people start to worry. I think that's been a problem," he said.
"But we've had assurances from the Secretary of Education Peter Hughes that the process of implementation will be orderly and consultative. We haven't seen that yet to any great degree and hopefully we'll see some trickle down of information and we can discuss that and debate that and see how it might look in schools.
"Personally, I think it has the potential to be a great thing but it also has the potential to not work at all.
"It's really going to be down to how it's implemented in schools.
"The roll-out and how much we're a part of it will be the making or breaking of it."