Hammett sought out Bray earlier in the week to seek clarification over a collection of rulings by Steve Walsh during the Hurricanes' 39-30 loss to the Waratahs in Sydney last Saturday.
Some of Walsh's decisions were curious at best, although the Hurricanes have publicly said they don't feel the Australian-based Kiwi was the reason they lost.
"We've had some private conversations but, like all those conversations, they stay private," Hammett said.
"We just deal with that in-house. To be quite honest, outside I believe there's a lot of talk about the refereeing decisions but for us we didn't get our game right. So no amount of looking back's actually going to assist us this week from that perspective."
This week's prospect is an outing against the Rebels at AAMI Park in Melbourne on Friday night.
The 11th-placed Rebels put up good statistical numbers but have struggled to cobble that in to many succinct performances this season.
They've only won three from nine, although they're rarely subjected to heavy defeats and are continuing to improve as a franchise.
Four-test All Black Tamati Ellison heads a handful of former Wellington-based players in the Rebels squad alongside former Lions Jason Woodward and Scott Fuglistaller.
"It means they always play well because everyone gets up for their old teammates," Hurricanes skipper Conrad Smith said.
The last time the seventh-placed Hurricanes played the Rebels in Melbourne, they were hammered 42-25 in 2011 but Hammett's side returned the favour a year later with a 66-24 pasting in the capital.
The vagaries of the Super Rugby draw meant they didn't meet last year but you can likely count on plenty of points again this time around given the Hurricanes score and concede them at a high rate.
Hammett has decided to rotate his forward pack slightly for Friday's game with tighthead prop Jeffery Toomaga-Allen moving to the bench to give Reggie Goodes the start at loosehead as Ben Franks comes across to the No 3 jersey.
Electric openside flanker Ardie Savea will also get a starting opportunity, which may be a nod of respect to Melbourne's dynamic backrow led by No 8 Scott Higginbotham.
"From our perspective, I think we are pretty fortunate and potentially have the strongest bench in Super Rugby," Hammett said.
Lock Jeremy Thrush has come through training well this week and shouldn't be hindered by a neck problem.
The Hurricanes have stuck with the same backline, which helped them towards a four-game winning streak before they were upended by the Waratahs.
That backline also features the blossoming midfield pairing of Alapati Leiua and Smith. They first played together when the Hurricanes knocked over the Bulls in Napier in round eight.
"He's obviously a pretty skilled player and he's made it look pretty easy given it's a position he's barely played at all," Smith said.
Hurricanes: Andre Taylor, Cory Jane, Conrad Smith (captain), Alapati Leiua, Julian Savea, Beauden Barrett, TJ Perenara, Victor Vito, Ardie Savea, Faifili Levave, James Broadhurst, Jeremy Thrush/Blade Thomson, Ben Franks, Dane Coles, Reggie Goodes. Reserves: Motu Matu'u, Chris Eves, Jeffery Toomaga-Allen, Blade Thomson/Brad Shields, Jack Lam, Billy Guyton, Tim Bateman, Matt Proctor
- by Daniel Richardson of APNZ
