C. Charles Hahn said:
Umm... so there's no panel break at the deck lid, or a seam between the quarter panel/pillar surround/A-pillar and the roof skin, or at the rear bumper cover?
Sure, you can successfully blend clear and have it look fine at first, but over time the blend line will start to show if it's buffed on or sanded in the future. It doesn't really take that much extra work to prep the rest of that continuous panel and paint it, so IMHO it makes no sense to leave the job only half finished.
I can understand being on a budget but even in the case of those jobs it doesn't take that much longer to be thorough and produce a repair you know will last.
Sorry, that's just my $0.02; If your customers are happy, I guess that's all that ultimately matters.