Is 'getBounds()' or 'getBounds2D()' just not accurate enough for clipping?

I've just been playing around in a particle simulator with clipping as a performance improvement. Using 'getBounds()' or 'getBounds2D()' still leaves specks of colour here and there on what should be a white background though. Surely using graphics.clip(myShape.getBounds()) should be sufficient to performly neatly clipped erasure of shapes?

[354 byte] By [KomodoDavea] at [2007-11-26 16:07:04]