Quoted from BR80:I've cleared a few cabinets with decals and haven't experienced anything like BK mentions above. I've only used Next Gen Decals and Two Part-Auto Clear (2PAC), so I can't speak for any other type of clear-coat and decals.
If done with care, the results can be awesome. The machine is tough as nails and looks like glass. The 2PAC allows the pin to sit next to a window without fear of fading, protects it from scratches, edges of the decals will never lift, and the colors are more vibrant.
In the unfortunate event the cabinet ever does get a good scratch, it can be buffed out. I'm not a professional and never cleared anything before this awful pinball hobby took over my free-time. It's not a simple or easy process and I'm still learning something new with each machine that gets done. It might not be worth it to everyone, but I plan on continuing to clear more cabs in the future.
Very nice work. I'm sending out a cabinet to be cleared as well. If done properly the cabs look incredible.