The 26-year-old playmaker -- whose half-time plea to change tactics engineered a remarkable comeback from the Scots to draw against England in the Six Nations after trailing 31-0 -- said he does not want to come away from his second World Cup regretting he had played differently.

Gregor Townsend's side, who were unfortunate to lose to Australia in the 2015 quarter-finals, are in a pool with 2018 Six Nations Grand Slam winners Ireland, Russia, Samoa and hosts Japan.

They begin the campaign with ostensibly their toughest match against the Irish in Yokohama on September 22.

"I need some consistency, but I'm still going to keep playing the way I'm going to play," said Russell at the squad's temporary training base in Scotland.

"At the World Cup with four group games, you need to be at the top of your game to get out of the group.

"I'm just going to make sure I'm in the best shape I can be, and prepared as well as I can for the World Cup.

"I don't want to look back and think if only I did this or that differently," the 44-time international added.

Russell, who plays for French Top 14 outfit Racing 92, is perhaps the most inventive of the northern hemisphere fly-halves with his no-look passes and dummies.

- 'Everyone on the same page' -

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However, Russell, whose talent was spotted in 2012 by present Scotland head coach Townsend when he was at Glasgow Warriors, says he is not going to single-handedly get the Scots to the knockout stages.

"No team can rely on one individual," he said.