I'm giving Shock: Social Science Fiction my first whirl next week. I think I've got a good handle on the system and the type of game it's designed to create, and I'm very excited, but there's one element I'm not sure I've fully grokked.
The choice of Praxis scales. I really like the idea - you get to define character choice in conflict in terms uniquely tailored for the setting you've created. But, coming to the choice for the first time, I could use some advice as to what we should be considering when we're choosing.
Any insights into this choice? What works well and what doesn't? Examples from games you've run (that worked, or failed to), or giving examples from popular games and media ("In Buffy, a great praxis scale would've been (X)... but (Y) wouldn't have worked well at all") would be very welcome.