Reading 'The Pregnant Pope' and thinking about my two games of Uni so far, I've found that there's always a Tenet that defined and focused the story we were about to tell.

Is this common ? Can anyone compare their enjoyment between stories that are highly focused right from the beginning versus the ones where you discover the story through playing?

Steve

The Pregnant Pope: http://universalis.actionroll.com/pregnant_pope.htm
The Cat Who Could End the World (A Russian Fairytale): http://www.indie-rpgs.com/viewtopic.php?t=8425