Hussar
Legend
Generally, if it involves a PC death, we'll look it up and resolve it at that time. That's important enough to stop. Anything else, we keep on moving, no tag backs.
This is precisely how we play it as well. I had to actually make this explicit in a few groups who would question EVERY SINGLE THING. That's fine if I'm doing things wrong, but, I was actually being shown to be right far more often than not and it got really, really annoying.
So, I actually had to install a rule that, unless death was on the line, if the player challenged a ruling and was wrong, he lost all xp for that session. It was harsh, but, it did work rather well. The Rules Lawyers made bloody damn sure of what they were talking about before they started jumping on me.
Zal - what is this "World Tree" thing? Never heard of it, but it sounds interesting.