Does anyone here routinely do installs using third party graphics? I thought it was generally something to be avoided.
Yes. Many corporate jobs have a printer and send out kits to local installers. This is one of the biggest points of certification. Companies can go to 3M, look for certified installers to do the job.
Up here we deal with kits all the time from Coke, Pepsi, Hilton, Marriott, Rent-A-Center, H&M, Gamestop, GAP, etc...
It's more cost effective for them to deal with one printer.
Could you imagine Coke sending out truck wraps to 100's of different printers all with the lowest big... different printers, different quality control, different materials, it'd be a total shit show and almost each truck would be a different color.
Yes, we do third party jobs, all day every day. You take the time and prep the surface, lay everything out before you apply it and you chances for mistakes go way down.