AllisterH said:
Wouldn't it be the other way round. The PC says I'm going to attempt an easy challenge and then the PC gets to describe however he wants to describe it. Thus, a person can triple somersault up the roof even if he wants.
The disadvantage of taking an easy challenge I imagine would be mostly time limited and how many successes you can generate in a time frame.
If there was a time limit then it would have gone better. The problem was there was no time limit in our demo so the players could roll an infinite number of times until they got either 6 successes or 4 failures. So there was no incentive to take anything other than an Easy difficulty. It was actually penalizing to take anything other than an Easy difficulty.
If I ran one of these, I'd run it Forge-style.
1. DM sets out stakes of total skill challenge ("Trap goes off and the party is trapped" vs. "Party evades trap and insert some benefit here")
2. Each round, the DM and Player rolling will set stakes ("I climb up the tree to get a closer look" vs. "Your weight on tree branch introduces an additional complication.")
3. The Player establishes how she's going to resolve that conflict ("I'll roll Athletics")
4. DM will define the difficulty ("Climbing a tree? Let's see... Are you a dwarf? No? Okay, then that's Easy... DC 11.")
5. Player rolls. ("A 19. Yes!")
6. Stakes are resolved. ("I'm up on the branch. Now I'm going to take a closer look at this trap.")
7. Go back to step 2 until the NCE is completed.
I'd probably let the player raise or lower the stakes to adjust the difficulty. But I don't think players should out-and-out set the DC unless there really is some sort of time limit (and we didn't use it in the demo I played in). I wouldn't be averse to it if the rules stated something like "6/4 in no more than 8 rolls". Just something that provided any sort of incentive for a player to choose anything other than his highest bonus vs the lowest DC (which is what the players in the demo did).
I'd also pretty much limit players to choose different skills in consecutive rounds. So that the usage of the highest skill over and over and over is broken up a bit.
But we haven't seen the final rules. And I'm pretty certain that the way we played it at the demo was not correct.
So, I'll have to wait until I see the rules to say anything binding, definitive or relevant regarding how I'd use NCEs. But based on my experience, this is what I'd do with them.
Actual rules will likely change all this significantly.