Duncan Weir believes vying with Ruaridh Jackson for the same Glasgow stand-off position is bringing out the best of both at international level.
A feature of Scotland’s first opening Autumn Test victory for four years against Japan last weekend was the seamless change-over between the pair, Weir coming on to notch his first international try.
Earlier, a near-flawless Jackson had set up two scores for winger Tommy Seymour and Weir insisted: “To an extent, I am trying to do something different from Jacko but you have to control yourself as well.
“You don’t want to try to do too much and sacrifice your chances by making mistakes.
“We are both driving ourselves forward and I feel we are improving week by week as well because of the competition.
“We might be different in the way we play at No. 10 but it is (always) about excuting what the coaches want to the best of our ability.”
South Africa are next up on Sunday and Weir added: “We moved the ball about well and were direct, too. We took Japan up front including getting a number of penalties off the scrum in the first half but we now know we are in for an incredible physical battle.”