SNG Wizard is a great tool, but you need to adjust the default ranges. If you do not, they will damage your game, because they are often really bad.
It's like the picture of a family which comes in a new photo frame. That probably isn't your family, and you should replace it with a picture you take.
As an example of how bad SNG Wizard's default ranges are, suppose everyone folds to the small blind on the first hand of a super turbo. One version of SNG Wizard has the SB pushing 17%, and the BB calling 13%, even though it is only 10 big blinds. Those are absurdly tight. SNG Wizard often assumes the BB's calling range does not depend on who pushed, even though you should put an UTG pusher on a much tighter range. If your opponents are not going to collide much if you fold, then folding is not worth as much as it would be with more aggressive opponents. (This is not the dominant effect in this particular example.) So, you have to adjust not only the ranges after you push, but also after you fold.