Auto body repair & detailing: Blend Panels, 2007 hyundai sonata, hyundai sonata

Question
How would you go about explaining the blending process to a customer?  In regards to this as well, how do you approach prior damage on the blend panel in the explanation?

Answer
ok say for instance we replaced a door skin on a 2007 Hyundai Sonata if i would see minor chips close to the blend i would just go ahead and fix them so all area that was refinish would look intact..but if theres dents or body work that needs to be fix on the blending quarter panel  then i would show the customer explaining to him or her that the second step in blending her vehicle would require both door and quarter panel
to be clear coated and we would have to fix the damage before we can achieve that.