No, not 4-5-1V since you'll lose the advantage in the midfield. Rather, you could've tried 4-1-3-2, I feel in that case, it could've been a draw, since it nullifies the midfield barring their ML.
And for your other post, it's quite ironic that I lost 2-0 to 4-3-3 and won 3-0 to 4-3-1-2, OT on in both cases. It depends on the opponent's quality. Offside trap itself is quite dangerous, and don't use it if the opponent's AMs and STs are faster, and never if they have more than 3 STs and AMs combined.
I'm tanking in league, but going for the CL-Cup double; it's harder than the treble, you know. It's like swimming upstream.