Is the experience really doubled yet? I purchased a 7 day 50% elixir hoping it would stack with the 2X experience, and it looks like I am only getting 50% exp so far.

I've only had enough time to try Krakken Mines, and one of the 300 XP quest from Stronghold, but it definitely was a lot closer to 1.5X XP (ie +50%) and 'not' 3X XP (or even 2.5X depending on how the stacking works)...

Can anyone clarify how the EXP bonuses actually work for the week (I've got Courage, the day, plus the 2X game bonus).