Hi Steve, in simple situations that kind of "stacked up" snap going to some elevation other than the top doesn't really tend to cause a catastrophic error, because if you continue drawing in the 2d view all the other points are still going to be planar to that view. If you need to use the resulting curve to do a Boolean for example it doesn't really matter what elevation the thing you just drew was on, and if the elevation was important, when you switch to the 3D view it is usually pretty easy to see that it is at a different elevation and can be moved into place.

So I think it is unlikely that this particular thing was a cause of very many trial version frustrations.

But I still think it is worthwhile though - it is just probably something that will help more advanced users and somewhat more complex projects.

- Michael