Comment #1 on issue 872 by tu...@tudorgirba.com: Roassal refactor RubberBand>>onDrop: http://code.google.com/p/moose-technology/issues/detail?id=872
Not having the rawView available in your code is probably wrong. You should always pass the builder through your building code. That is why, for example, all visualizations in Moose have both a viewXYZ unary method for opening the visualization, and a viewXYZOn: one for composition purposes.
So, I think this is not a valid concern.