Because I'm poor but still love pinball I mostly work on EM's. Since there's not always a ton of game specific info available on some of these I usually do a thread for each game. Recently I started doing videos when I was done so people can see how the game actually plays and guys who've played these games to death can point out any issues that I don't see. Three examples.
https://pinside.com/pinball/forum/topic/gottlieb-target-pool-how-much
https://pinside.com/pinball/forum/topic/genco-hits-and-runs-did-dad-pay-too-much
There's guys on here that do amazing work when repairing a game so not everybody is trying to hide something. 
Oh, and I usually take some decent photos of the game too.
