Raiders have won their last two games against fellow promotion contenders Redruth and Hartpury College, in both games by a point, and sit fourth in the National 2 South table.
Head coach Kieron Dawson said: “We’ve really got to be on our straps for the game as they’re very strong up front and it’s a potential banana skin.
“If we want to be in the top two, it’s a game we need to be taking the bonus point from.
“We’re fourth at the moment but we’d have hoped to be in the top two by now and we’re two points off.
“Redruth, who are second, got the losing bonus point off us and we failed to do that against Chinnor, which is where those two points have come from.”