"I think Taradale will admit they weren't at their best so it was the best performance of our season."
Mason is not averse to the idea of pitting his predominantly young charges against favourites Duke of Gloucester Napier City Rovers who thumped Alexander Electric Napier Marist Premiers 5-1 on an adjacent field.
Third-placed league division one campaigners Hastings Hibernian are riding a similar euphoric wave after pipping last-placed Rescom Security Port Hill United 1-0 at Marewa Park, Napier.
Striker Kieran Young scored the winner early in the 21st minute for one of the smallest clubs in the Bay.
Hastings Hibs coach Jac Kitt said they were "a pretty tight unit".
They are the only side to beat Taradale Vikings in the league this winter in a high-scoring 5-4 affair on July 2 at their home ground, Frimley Park, Hastings.
"We beat Grant Hastings' Boys High School earlier in the knockout. We were up 2-0 and they sunk in a couple towards the end and we went to penalty kicks," said Kitt who felt his troops were young and keen so it was a case of "giving them a go".
Some clubs, he said, did not necessarily adhere to that philosophy with young talent.
"My guys are already punching above their weight so no matter what happens after this [in the knockout cup] it's been great for the club."
They were happy to lock horns with any team in the semifinals. "We'll upset some more, why not?"
Big Barrel Havelock North Wanderers beat Speights Ale House Napier Eskview United 4-2 at Petane Domain.