A brutal scrimmage session overseen by NRL referee Phil Henderson has given the Raiders a glimpse into what can be expected under the further rule changes this season.
Leading Raiders players described the intensity as an eye-opener leading into their only trial against the Roosters on February 27 with the 10-metre infringement and marker play among their most immediate concerns.
The Raiders were ranked second last year in conceding the most ruck infringements (83) during the regular season at an average of 4.6 per game - an area the team is determined to fix.
"He [Henderson] really showed us the second you try to slow anything down he's going to blow six-again until you get the speed right," five-eighth Jack Wighton said.
"It will take the first four or five games where you're trying to get that match fitness [to get used to it]."
After bowing out last season midway through October and the State of Origin series wrapping up a month later, the Raiders have had to navigate a shortened pre-season.
Canberra forward Sia Soliola. ?raiders.com.au Raiders coach Ricky Stuart said the additional changes would help the game "evolve", while veteran forward Sia Soliola said the bigger bodies in the pack would be tested.
"We got a small taste of it and it's definitely going to bring up a few challenges, especially through the middle," Soliola said.
"Re-adjusting with the six-again and 10-metre infringements and kicking out, those are probably our most immediate [concerns].
"A few scrums are scrapped ... I'm curious to see how that pans out in the trials.