NEIL Harris was pleased Millwall came through their first pre-season friendly this summer without injuries – but admitted his side will need to be more clinical once the Championship starts in August.
Ben Thompson's second-half equaliser cancelled out Romaric Logan's opener before the break at Dartford on Saturday afternoon.
Harris picked two different sides in each half, and made a 12th substitution in the 83rd minute when Christian Mbulu replaced Paul Rooney.
James Meredith and Tom Elliott made their debuts for Millwall, while two other permanent summer recruits, George Saville and Jed Wallace, also featured.
Fred Onyedinma played the first half against the National League South side, and Millwall are expected to confirm early next week that he has committed his future to the club.
Onyedinma partnered Steve Morison up front for Millwall before the break, with Elliott and Lee Gregory the front two in the second half.
Harris felt the long grass at Princes Park made it difficult for his side to get into any kind of rhythm.
"Dartford might have lost their lawnmower this week," Harris joked.
He added: "I said to the boys the most important thing is we came through with no injuries.
"We moved the ball too slowly, we were a little bit leggy. The boys had a really tough week, maybe too tough, but we've come through without injuries so it's worked a treat.
"We certainly can be more clinical in the penalty area, we could have scored seven or eight. This season we're going to have to be more clinical and take our chances when they come to us.
"There were some good performances and some are finding their way.
"I thought our combination play all over the park was poor but that happens when you throw players together.
"It was difficult because it was a hot day and the grass was long. The boys have worked extremely hard, even yesterday.
"There were too many times when we took a breather on and off the ball. The idea in pre-season is you need to work loads, so we need to up the tempo and move a bit quicker with and without the ball.
"There were balls going astray, balls going to feet and people mis-controlling it and then getting tackled when they shouldn't do.
"That's what we expect and that's why we're here."
Lions goalkeeper Tom King was at fault for Darts' opener when he botched an attempted clearance, allowing Logan in.
But Harris wasn't worried about the young stopper's mistake.
"You want those things out of the way in pre-season," Harris said. "He could play 600 games in his career and not make that mistake.
"It happens. Things like that aren't an issue, it's part and parcel of it. He's a young goalkeeper and you want him to make those sorts of errors in these games and get it out of the way. No problem with that."
Image: Millwall FC