"You just can't simulate that in practice," Cubit said. "They are just so imppressive on offense and have so many weapons."
Damien Wilkins led St. John's with 18 points and eight rebounds. Jason Capel had 17 points, nine rebounds and four blocked shots.
The Vikings (9-0) had trouble finding their range in the first quarter as they stumbled out to an 8-4 lead. A drive by Chris Clever and a 15-footer by Cody Carbaugh pulled Chambersburg (9-3) even and it was tied at 12 at the end of the period.
Alex Hart, playing just his second game since recovering from a foot injury, got a home roll on the second of two free throws for a 14-12 Chambersburg lead to start the second quarter. Wilkins scored inside and, after a steal by Sherrod Teasley, Capel hit a turnaround jumper as the Vikings reclaimed the lead.
Carbaugh pulled Chambersburg to within one, 18-17, on a free throw with 5:00 remaining. It was the last points the Trojans scored in the half.
Capel hit a 3-pointer from the top of the key. Teasley made a steal in the backcourt and scored on a layup. Shike Lee swished a three-pointer from the left side, then hit one from the right with two seconds left in the half.
The Vikings had a 35-17 advantage when the dust had settled.
"They're a talented team and I think it took us some time to adjust to the atmosphere tonight," St. John's coach Stu Vetter said. "We missed some shots we normally hit in the first quarter. If we hit those shots early, then it's a different game from the start."
"We had a few turnovers and that helped them get on that streak," Cubit said. "Against a team like that, that's a lethal run. It's not a case where you're going to be able to recover."
Larry Johnson and Carbaugh each had 12 points for the Trojans. Chris Clever added 10 points and 10 rebounds.