SCOTT McDonald believes Steve Lomas' decision to pack the midfield will make Millwall harder to beat over the course of the season.
Having started the campaign using a 4-4-2 formation, Lomas has since settled on playing 4-2-3-1, a tactic that is popular in the Premier League.
And McDonald, who played as the lone striker against QPR last weekend, feels the Lions are well-suited to their current system.
He said: "When we have played 4-4-2, unfortunately it hasn't worked for us and left us quite open, especially at the start of the season. When we switched to 4-2-3-1, that's when we've had the most success and picked up points.
"This system does not leave you as open in the middle of the park, which is where most games are won and lost at this level. It is a trend now; a lot of teams are playing with three behind the striker.
"Football is a game of tactics and having some extra bodies in the middle has definitely helped us tighten up."
But McDonald admits Millwall are still adjusting to a new way of playing under Lomas, who has had a long list on injuries to deal with during the first three months of the season.
He said: "I think we've used the highest number of players within the Championship this year which shows a couple of things buy premarin nasal spray really, the main one being that we've had quite a lot of injuries – myself, David Forde, Mark Beevers and Liam Trotter to name a few.
"That has hampered the manager in being able to pick a consistent team and his strongest XI. You don't want to be chopping and changing all the time – players needing a rest and dips in form aside – but the gaffer has been frustrated by injuries. Hopefully we can find some consistency over the coming weeks."
The Lions travel to Reading on Saturday looking to make amends for back-to-back thrashing away from home and McDonald says Lomas' side need to show the same resolve on the road as they have done at The Den in recent weeks.
"The Derby game aside, which was a complete shambles, we're always in games at The Den with the crowd behind us and demanding certain levels from us," said the striker.
"It's when we go away from home that we need to start picking up points, just like we did against Brighton, Sheffield Wednesday and Charlton. We need more performances like that away from home.
"We can't be gifting sides three points. Against Reading we will bring our qualities to the game but first and foremost be hard to beat and solid defensively. Hopefully we can pose a threat at the other end as well."