Despite wet weather being forecast and the profligate showing in the 13-6 loss to England last Saturday, head coach Andy Robinson has backed his Scotland side to take on Wales at their own expansive game at the Millennium Stadium.
Captain Ross Ford said: "We've asked for the roof to be closed, so that guarantees us a nice dry ball to go out and play the way we want to.
"We believe we've got the ability there to put pressure on Wales with the way we want to play and we'd prefer it if the roof was closed."
Many of Scotland's most memorable victories, even in recent times, have come in teeming rain, such as the November 2010 win over then world champions South Africa.
The desire for Sunday's contest to be played without the influence of the elements shows how Scotland's tactical game has evolved under Robinson.
Ford added: "We have had victories in the worst weather conditions, but I think you would be hard pressed to find a rugby player who enjoys the wet and the cold.
"We're going down there with the intention of closing the roof and playing."
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