The World Curling Federation's stones employed at WinSport's Markin MacPhail Centre were last tossed at the 2019 men's world championship in Lethbridge, Alta., where Kevin Koe represented Canada.
Colton Flasch, Koe's second that year, has supplied Bottcher's foursome with a "rock book" that is a scouting report on each stone's movement.
"He gave us his book from the '19 worlds," Bottcher third Darren Moulding said. "That just shows us Canadian curlers, we've got each other's backs."
Bottcher, Moulding and front end Brad Thiessen and Karrick Martin from Edmonton came from behind to beat Scotland's Bruce Mouat 9-6 in Canada's opener Friday.