The most important thing is examples and concrete abuses and impacts. I will read evidence after the round if it is referenced in the last two speeches. Evidence challenges are incredibly serious. The challenging team must have the original and immediately stop the debate. Debaters that hint at evidence challenges or accidentally say something resembling an evidence challenge and back down will likely receive low points.
People underutilize cross-examination.
I find purely informational cross-x s incredibly boring. Please entertain me. I will tell you to slow down or be clearer if I cannot flow you. You had darn well better be nice to each other. Debate is the best activity in the entire world, and you had better not make me leave the room thinking otherwise.