Outside of edit sketch you can move a spline fit point snap it to other sketches or body edges but you cannot
snap it to the world grid.
that is kinda unfortunate because when I finetune my profiles I really do not want to go into edit sketch not
see the surface features in the timeline afterwards.
So I think for all the designers being able to snap to grid is a crucial and very basic snapping tool common
in CAD surfacing apps like Alias Rhino.
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If there is a performance hit with the grid then the grid system needs to get some love to be faster.
http://forums.autodesk.com/t5/design-and-documentation/snapping-to-grid-outside-sketch-edit-not-poss...
