Scotland won their first-ever HSBC World Rugby Seven Series event when they surprisingly lifted the crown previous year, and 12 months on they repeated the trick to become back-to-back champions.
They couldn't have had a tougher path out of the quarterfinals on Sunday, with World Series champions South Africa standing between them and the final four.
And Amor said he was excited for what the future holds for England sevens, describing the past 12 months, which has also seen him lead Team GB at the Olympics, as "special".
Canada provided one of the shocks of the day in the opening match with an upset 22-19 win over Fiji.
The Scots faced the USA Eagles in the semi-final and squeezed past them despite a brace of tries from the outstanding Perry Baker, the fastest man in rugby.
Twickenham Stadium, London (CNN) In a final between two of rugby's greatest rivals, Scotland upset home favorites England 12-7 to win back-to-back London Sevens titles at Twickenham Stadium.
Eden Agero scored and converted his own try before captain Andrew Amonde grounded a converted try for a 14-0 lead.
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England head coach Simon Amor says they will be a better side for the disappointment of losing the HSBC London sevens final to Scotland on Sunday.
Canada went 2-1-0 Saturday to reach the Cup quarter-finals. Veteran John Moonlight scored the winning try - his 100th on the circuit - with no time remaining to help Canada post just its third win in 48 tries against the Pacific islanders.
All Blacks Sevens coach Scott Waldrom said the team are still disappointed with their 26-5 loss to South Africa in the semi-finals last week.
The Canadians finished 13th, ninth and sixth, respectively, over the last three seasons on the World Series.
Fiji, victor of the previous two World Series, was second in the standings after winning at Hong Kong in March, but faded with quarter-final exits in Singapore and Paris, and didn't even get that far here.
After missing out on the Cup quarter finals for the first time since January 2014, Fiji responded on day two by thrashing Russian Federation 31-5 and Kenya 45-5 before beating Wales 26-14 in the Challenge Trophy final.
It was the first time since Las Vegas in 2014 that the Fijians had failed to make it through to the final eight of the competition.
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