Tries from Gregor Hiddleston, Rory Darge, Kyle Steyn and Stafford McDowall secured a vital away win for the Scotstoun men, but Darge says that they can't afford to give every team a 14-0 start.
"If you want to do well in the competition, you've got to go and perform well away from home and go and win so we're absolutely delighted with that," Darge told BBC Radio 5 Live.
"We've been here before as a squad, 14-0 down or two scores down and come back on the right side of it so that belief comes from that - the fact that we've done it before.
"We never really panicked in that situation and just stuck to what we know works.
"We don't want to give every team a 14-0 head start so there will be things in that that we can do better. The work we did in the first half against the wind really paid dividends in the second half.
"As a whole, the pack did a really good job and the backs complimented it and, yeah, we are delighted."
Franco Smith's side take on Toulouse at home next Saturday.
"Sale away into Toulouse at home, it doesn't get much harder than that," added Darge.
"It's huge. We know they're going to send their best and come and look to get a result at Scotstoun. It's a place where we really pride ourselves so we're just looking forward to going against one of the best teams in Europe."