Note, I always was told (mame.net & mameworld.org/info forums) that Black Tiger was conversion only. I think it's conversion only. Sorry if I sounded like I think there was a dedicated cab.
It's more the principal of using the internet as a source of "the truth" I'm questioning.
...I agree one source of information is never all inclusive.
But if you were to gather information from several sources and put them all together.
Agree, multiple
independent sources are much better than a single source, but...
...So say I check 5-6 sources for manuals and all I find are KIT manuals...
When 4-5 sites copy all the other sites info, so they have (and don't have) the same stuff?
The two sites I saw on Black Tiger look like copies of the same scan, and I doubt there are more than two different scans (if that) among the 5-6 sites. The two sites I searched didn't have a Black Dragon manual, didn't have Electrocoin (UK) Black Tiger, didn't have a EU campcom Black Tiger manual. Where's the
Gauntlet Legends Kit (conversion) manual?
... and then I check all the flyers I can find and none show a cabinet of any kind and then I search the internet for any and all images of cabinets and can clearly tell they are conversions ..... then what would my conclusion be?
Now these are much better
independent points of info. Manuals + flyers + all pictures of cabs look like conversions = three sources. I'm not including the stuff I heard in the forums over the years as another source because AFAIK, their conclusions are from the same above three "sources".
The flyers are a great second source, as I used in my examples above. OTOH, they also can be used to shown they aren't perfect either. If I looked for a german manual, flyer, or romset of Dig Dug a year ago, I wouldn't find any on the internet; but in 2009-06-16 a german flyer was posted at arcadeflyers.com. Does this mean the german version didn't exist until this year, and now does?

So, while I agree black tiger was probably released only as a kit in the US, especially backed with the evidence you mensioned, I'm less sure about capcom not releasing Black Dragon pre-installed in a factory produced cab. (Yeah, capcom didn't game dedicated much besides
street fighter, but they did release games inside cabs, not just conversion/upgrade kits)