You can also use negative values for "blend"...



This is a -1.5 blend

But you have to be careful with it... It depends on what you plan on doing with the model (Visualization, etc) It's easy to create intersecting surfaces with this method, when the originating surfaces and the "Scoop" or blend are moving towards each other as opposed to away....

If you look at the extremities of this model, you can see then start to "skim" at the very outer edges...

This may or may not be good for certain circumstances....