It's the kind of care like this that makes me feel REALLY good about choosing Greenfield's Collision!  I just wish I'd decided to go there instead of trying to do the undercoating myself.  But then, I wouldn't have the experience under my belt, and might have eventually gone ahead and tried it anyway. 

Pen markings were areas of concern and areas that they needed to block off from the RhinoLiner to prevent threads from getting clogged.