While a number of the rules being tested Tuesday at the NHL Research and Development Camp were obvious, there were other things being looked at, including some technological changes. One of them was allowing the referees to communicate with each other via wireless headsets.
, a referee from the Ontario Hockey League, said he found pros and cons with the system.
"The pros are, the puck's loose around the net, I can yell at my partner 'It's loose' when it's down low," he said. "We can communicate on calls, support each other on calls, which is good. Some of the cons are it blocks your hearing on one side. There was one time where a player came out of the penalty box and I couldn't hear him coming, and he almost ran me over. When you're in the corner you want to be able to hear that. You want to be able to move and get out of the way. Sometimes it affects your focus. You're saying something, you're trying to watch a close play and (your partner) is yapping in your ear. Sometimes you can lose your focus."
Ferguson did say the earpiece he wore was comfortable and he had no problem hearing his partner.
"There are some pros, some cons," he said. "They'd have to do more work with it. You have to get used to it, that's the biggest thing."
Of the other changes, Ferguson liked the faceoff option used in the second session, where the linesman placed the puck in the faceoff dot, both skaters got set, and then the puck was picked up and dropped.
"I found today they weren't shooting (off the faceoff) as much as they usually do," Ferguson said. "They have a harder time timing the linesman, I thought. … Both set, puck was down, there was no advantage, there was no cheating, I thought that was good."
Contact Adam Kimelman at firstname.lastname@example.org. Follow him on Twitter: @NHLAdamK