Gary Silk believes victory over FC Halifax on Saturday will send out a message to the rest of the Blue Square Bet North.
The ambitious Shaymen missed out on promotion last season in the play-offs and once again are charging for the top end of the table.
And Pilgrims defender Silk feels that a good result over the West Yorkshire club on their own ground will underline the Pilgrims' own potential.
"We've got to make sure we beat the teams that are up there," said Silk.
"They are one of the sides which were immediately tipped for the top and they are living up to those expectations.
"It will be one of those matches that will show us how far we have come this season and what we are capable of.
"Hopefully we can get up there and get the three points."
Silk's team-mate Marc Newsham believes the club have every reason to be confident heading into Saturday's match (3pm).
The striker netted from the penalty spot in United's 2-0 win over Tadcaster in the FA Cup third qualifying round last Saturday.
And he feels the victory, their fourth in five games, has helped build the team's momentum which will prove crucial against Halifax.
"You need momentum and we never really had that last season," said Newsham.
"We need to get on a run of games, maybe not winning all of them, but certainly not getting beaten.
"We are doing that, with four in five.
"Halifax away is a big game. It is a big ground, with a big crowd. So we will get set for that and go into it confident."
The confidence in the Pilgrims' camp is of stark contrast from the scene at the start of September. Four defeats to Hickley, Bishop's Stortford, Workington and Oxford City left the side rocking.
But a crucial 2-0 win at Colywn Bay kick started a resurgence.
"I think that win at Colywn was vital," said Newsham. "We have just moved on.
"We were flying against Chester, did well against Kettering and against Bradford, we were happy with the performance, that's why it was upsetting to miss out on a point.
"But against Tadcaster we've done well and got another win.
"It is the momentum we needed. Our mistakes came in a four-game clump, but we have moved on.
"We are confident. We were down after that bad spell, but after getting the results, the confidence builds. It is massive to get on a run and show that consistency."