Normal
Does your PSU have a single 12V rail? If so it should be fine - in that case all the 12V lines will be coming from the same source no matter what, and shouldn't care about the wiring in between unless some wires are a lot thinner or otherwise have higher resistance than the rest. And even that wouldn't cause issues. If the PSU has dual 12V rails this might be an issue, but frankly I don't know.
