Quote Originally Posted by Mr Happy Go Lucky
1. Use V for W: say "vest" in lieu of "west"
2. Use z/s for th: say "zis/sink" in lieu of "this/think"
I think it will be an overplaying. That can say those who utterly have no clue about English pronounsiation. If you want sound more natural there are more thin moments like the lack of aspiration and dark L R, different intonation ets.