Sean was retained in the line-up to face Italy by coach Matt Williams despite many believing he would make way for the fit-again Simon Webster.
But Williams omitted Simon Danielli instead, and Sean responded to this show of confidence from his coach with a fine all-round display of pace, power and hunger for the action in Scotland's 18-10 victory.
Indeed, he was only denied a third try by referee Stuart Dickinson, who ruled a pass had gone forward in the move leading to Lamont's 64th-minute touchdown at Murrayfield.
Sean said: "I know what I can do. I just haven't been able to do it in the blue jersey.
"I got more ball on Saturday and enjoyed that. It wasn't because I had a licence to go looking for it, I've had that all the time but just haven't done it.
"We played much better in the second half and I got a fair bit to do and all I was trying to do was avoid the tackles and stay on my feet as long as possible. In a game like that, that's what you've got to do."
Sean admits he was upset to see a first Murrayfield try ruled out, but did take satisfaction from the hard tackles he put in on a couple of the Italian backs.
He said: "It was annoying to say the least! I thought it was a good pass from Chris (Paterson) but maybe the referee had seen something before that.
"I was celebrating when I realised he'd chalked it off. It would have been nice to score to round off the day.
"The big hits were nice though. Jason White put in a couple against Ireland two weeks ago and I managed to get a couple in on Saturday.
"We needed that win. It's been a while coming but for all the work we put in it's deserved.
"It's not like we haven't been putting the work in, it's just that we
haven't been able to take it onto the pitch.
"Hopefully we can build on it now and put some results together. We don't want one good result then one bad one."