Yeah Alex, it's actually quite confusing. When you are in the gameclient and looking at the menu, the majority of the tournaments (and CTTH) say the green speeds are "Very Fast".
The system I've devised to deal with this in the meantime is below:
When it says "Very Fast" it's always Fast.
When it says "Fast" in the display, it's probably going to stay Fast, though one time (I think the first week of new speeds) it came out Standard.
When it says "Standard" in the display, it's always Slow.
Also, I'd like to suggest adding the conditions to the tournament page on the actual website. That way we can see the conditions (and tees) without first having to load the game client.