All options worked for me, no issues at all really.
Only "issue" is that when setting Gold and/or freezing it, the AI also got that much gold.
(i set gold at 50k and after it updated i froze it, and all AI players had 50k gold as well)
Turning the fast research on will make Research fast for a while, so a lot of techs is set to 1 turn, but it catches up usually around renaissance era, depending on how much research points you are making.
One turn building wonders/buildings also only works up to a certain point, and then they will still take a while to build, more so in cities that has low production.
not that it matters, as by that time you would be so far ahead of any of the AI's that they can't really do much xD
so even IF you give them loads of gold and they spread crazy fast, they are still in the stone age when you are running around with rifles.
The Gold issue you speak of would only occur if you FREEZE the value..
The other issues you are speaking of, you can change the value being written in the trainer, you can modify the value that is being written.
best,
Cal
Sorry, but will there be a DX12 version since i see civ is removed from trainer quene?
no.
best,
cal