I found this thread looking for others who have the same issue i have. My 07 silverado ltz is extremely undersprayed and i never caught it at the dealer. It wasn't until i got the truck under intense sunlight that it looks like the truck got 1/2 a layer of paint. Very disappointed in how they could underspray such a nice truck. I'll be voicing my concerns here shortly.. anyone specific that you got to that was helpful? GM, DM?