Lee Bullen pointed to a change in tactics that helped the Owls overturn a 2-0 deficit to beat Holstein Kiel 3-2 on Sunday afternoon.
A Jordan Rhodes goal and two from Steven Fletcher secured victory for Wednesday in the friendly encounter in north Germany.
Bullen told swfc.co.uk: “We started with the 4-4-2 that has served us very well but it wasn’t quite working this afternoon.
“We changed it to a 4-3-3 and it worked much better. We were more compact and saw much more of the ball.
“We got the goal just before half time, which was the perfect time to score, and it gave us that lift and the platform to go on and win the game.
“We controlled possession for most of the second half and I was pleased for the boys, they showed a lot of grit and deserved the win.”
The SWFC contingent travel back to England on Monday and Bullen reflected positively on the six-day trip to Germany.
He added: “It’s been good, very good. We’ve been well looked after and the two games have been very useful.
“We played different teams who played in different ways and play in different divisions.
“Overall, the trip has been a positive experience and we’ll head back home in a positive frame of mind.”