"Mainly when we were really hot on attack, people resort to getting a bit overzealous - off feet, losing accuracy. These games are always hard and that's what I said to the boys after the game. They didn't get any time - under pressure the whole time."
Wanganui will challenge Waikato for the Shield under those rules in August.
The front row scrummaged well, although there was one tighthead conceded against their bigger opposition.
Both the Border locks Sam Madams and Gavin Thornbury got through plenty of work, while Caskey was also pleased with Kaierau utility back Anaru Saurara's 55 minutes at halfback - the position he only moved into for his club because of necessity earlier in the season.
The team was captained by Taihape's Dane Whale in the absence of clubmate Tremaine Gilbert, who Caskey said was pulled out of the match.
The plan had been to shift Whale around at halftime with Ruapehu's Craig Clare at centre, but the former Highlander had to come off for a quad strain.
Whale therefore covered No 10 for 60 minutes and then handed over to Pirates' Tupu Tavae, who came into the team for injured fullback Nick Harding and at that point in the game was the only other real choice available.
Metro fullback Te Rangatira Waitokia did not get a lot of chances to show his attacking skills, but made good tackles.
"He's bound to get another opportunity," Caskey said.
