Essentially, since US Set 1 is accepted overall, any US Set 1 should be fine whether it is emulated and processed by a TKG-4 or TKG-3. It is my understanding from Jeff or someone else, I don't remember, that the same processor is used.
The information about mix-matching the US Set 1 and US Set 2 is disconcerting. What file would it be? I want to try this out with the mame files, record an inp with it and then playback in us set 1 only. I suspect that if this was done I could catch any problems with it. Arcade is another matter. We had discussed at one time that if someone modified the roms on Arcade that it would be horrendous. But how would we know. Mame is much better in this regard.
I always want to see any new submissions by new players with Cabs that we have not seen so obviously if you put up a good score just show us what you have after the game. People like seeing this stuff anyways, love seeing cabs, etc.
I was waiting for the first submission of this type so I could think it through but I think that Chris did a good job in his pcb and rom thread which is attached to the high score list. You will want to read through that too if you have not.
Essentially, if you have the US Set 1 roms, I don't think that it matters whether it is TKG-4 or TKG-3 since the same processor is used, etc. I may want to specify on the high score list though, such as the following platforms: TKG-4, TKG-3, JAMMA, MAME. The platform section helps to make distinctions so that people see that scores are not completely comparable.
Chris has proposed that we set some kind of limit on the list that would dictate what kind of verification would be required. For example, if someone got say 500,000 or higher, or as Chris suggested, 700,000 or higher, then we would enforce a higher level of verification, and be a little more laxed on scores that fall below this limit. We should keep this in mind but for now my inclination is to keep everything except a more explicit explanation of the use of US Set 1 in various pcbs. Essentially this proposal would not have too much of an effect since most streamed arcade scores are accepted and the only time I have required anyone to show their machine was if it was a new member of the forum, and they are posting their first score. If for some reason someone got a new cab or new board that is an established member, I have not required it, but it is recommended. I did this when I got my second cab, I show everything the night I got it.
I already accept US Set 1 played on a JAMMA pcb, then why not accept it on a TKG-3 as long as it is US Set 1. This will need to be differentiated on the platform though.
Any other thoughts on the possibility of people mix-matching roms on the Arcade? Of what files I would need to swap in the mame files to get US Set 2 effects in US Set 1 without losing anything else, just adding how the barrel stage functions? I am almost certain that the verification process will find these out.