A return to New Zealand so soon after he had burned so many bridges might have seemed unlikely but, given his previous problems with alcohol, it could only be called a mature decision.
"When I first got over there I loved it," Guildford told Radio Sport. "It was sorted of a release, being away from New Zealand and just focus on rugby.
"Then, towards the end of my first year there, I was sort of thinking, 'Is this really what I want to be doing?' I was going to training 8-5 then just sitting at home by myself and not really achieving a lot."
That has all changed since Guildford arrived home, welcomed back with open arms by a Hawkes Bay union eager to assist a favourite son - and keen to reap the rewards on the field.
But what Guildford's doing outside of the lines is of equal encouragement for all parties, staying busy with boxing training for Fight for Life, preparing to study and taking a job as a rugby development officer for the Magpies.
"I just wanted to do a few little things outside of rugby," he said. "The money was good but, at the end of the day, it doesn't make you entirely happy.
"It's good to be able to help [young players] and not just concentrate on myself, which I had been doing since I was 18, really. All I knew was rugby and how I was going to progress. It's exciting to get to training and help others."
Thursday's Shield defence will be Guildford's first run at fullback - he's hoping Israel Dagg makes the All Blacks' World Cup squad so he can stay there - and the first step on a path he hopes will culminate in another shot at Super Rugby.
"I'd love to play Super Rugby again," he said. "But to be honest, I'm actually really happy doing what I am now. The money's not anywhere near the same as I was getting overseas, but I'm a lot happier."