Scott was one of two British winners at the Palma World Cup at the start of the month, Alison Young the other in the Laser Radial, and claimed a win and second from races four and five.
He now tops the standings with fellow Brit Andrew Mills second after a seventh in race four but more importantly a win in race five with Ed Wright and Mark Andrews also fairing well.
They both posted two top-seven finishes with black flag disqualifications to Pieter Jan Postma, Jonathan Lobert and Vasilij Zbogar at the start of race two aiding their cause.
Scott leads Mills by five points while Wright is three points away from the top three in fifth and Andrews is just one place off making Saturday's top ten medal race in 11th.
But Scott, who claimed victory in his first Finn race since missing out on selection for the London 2012 Olympics in Palma, isn't allowing himself to get carried away with his results.
"A first and a second, I couldn't really ask for much more than that," said Scott. "There were a few of the guys who'd been up there all week who got a black flag in that second race as well, which is helping us out a little bit.
"But I'd imagine it's still pretty tight up at the top. There's still the double medal races to go as well as two more gold fleet races before that, so we'll see. I'll just try and take it steady like I did out there."
Scott isn't the only British leader with Charlotte Dobson and Mary Rook hanging on to a slender one-point lead in the 49erFX class after two fourths and a seventh.
Dylan Fletcher and Alain Sign handed their lead in the 49er over to Spaniards Carlos and Anton Paz with Stevie Morrison and Ben Rhodes two places behind in fourth.
World Cup winner Young improved to second overall in the Laser Radial with a third and a second from her two races with Bryony Shaw in the same position in the women's RS:X.
Ben Saxton and Hannah Diamond jumped to fourth in the Nacra 17 with two fourths and an eighth while Sophie Weguelin and Eilidh McIntyre are sixth in the women's 470.
The British men's 470 pairings had a testing day as Luke Patience and Joe Glanfield finished 14th in race one before a boom breakage forced their retirement from race two.
Nick Rogers and Elliot Willis were 19th in the first race and then disqualified for a premature start with the pair 18th overall, seven places behind Patience and Glanfield.
Meanwhile in the Laser, Nick Thompson is edging closer towards the top ten medal race position with a sixth and a 14th seeing him into 13th overall.
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