This week, players underwent fitness testing and, while several stood out, Ferris said the aim was to get all of the players into top condition.
Sixteen players attended Monday's first session in Kaitaia, there were 30 players at the Kerikeri training on Tuesday, 10 at Dargaville on Wednesday and 17 in Kaiwaka on Thursday.
The Whangarei programme will start in two weeks' time and will be open to any player 14 years and older who wants to develop their rugby further.
"Numbers were pleasing as many players are still in summer mode. There are still a few key players we have targeted to get along - those earmarked for rep rugby ... we are hoping to get more along as the more we have at training, the better it is for Northland rugby," Ferris said.
While it will keep the coaching staff busy, they are all enthusiastic about the programme and see it as a positive thing for the game in Northland.
"A byproduct of the programme is having the ITM Cup coaches engaging with the community. An exciting part of it is meeting some really good players who don't realise their true potential," the coach added.
The HPSP will run through until August when the representative season begins.