The home side could have added to their lead when Marlon Pack saw his goalbound shot blocked, but Still was pleased with the way his side broke the Mariners down.
He said: "If you look at their league position you could think Grimsby are shocking, but if you see how many games they have drawn they are not easy to play against as they keep two banks of four and are hard to break down.
"We had to be patient and work a bit harder on our crosses. We never made the most of them, but once the goal went in it was just a case of getting the second to settle everyone down, which we did through 'Greeny'."
Source: Team Talk
Source: Team Talk