Quoted from play_pinball:
I've got a very nice original run pro on the marketplace right now: https://pinside.com/pinball/forum/topic/for-sale-huo-metallica-pro-original-run-wood-backbox
I had a ColorDMD in there for a while and can confirm it fits fine without any issue. I don't have anything to compare it to but the colors are indeed vibrant and I have not noticed any ghosting or chipping issues (though it does have cliffy protectors everywhere).
For some reason I was under the impression the ProLEDs had SMD boards instead of sockets.
All the inserts and GI on the Pro LEDs are sockets.
Quoted from jawjaw:
Colordmd LCD panels fit better in wood backbox models. Also heard that playfields in older models had more vibrant colors but not sure about that. I forget the dates, but there was a run that had a playfield issues of ghosting inserts and chipping clearcoat. I got my pro around that time and had a few ghosting inserts but clearcoat fine. There are also issues with decals peeling off backbox on the metal versions.
Mechanically, both versions are exactly the same as far as I know. Both use SAM boards and play exactly the same. LED version still used traditional lamp sockets and regular 2smd bulbs.
The playfields that had problems were reported in the early spring of '15. My game was made in May of '15 and has no ghosting or decal issues. There was a lot of discussion in this thread about it during those few months.