To be honest i don't know much about the sng wizard. In the end it is always a good idea to prove the results with your common sense. If you have critical spots that you are not sure about feel free to post them in our hand evaluation forums.
If you really want to know the answer for your questions I would suggest our software board.
With 12 people left and 6payed there is some bubble factor for sure, but I wouldn't take it into account too much. It might make a difference of 1,x% equity - in the end it really doesn't matter that much. I mean: ICM calculations and analysis are good, but while you are playing you will always have to use your own brain. Therefore I would focus on clear spots and not on marginal situations that you won't be able to judge while playing anyways.
Regards,
Asaban