-Running obscure arguments on your opponents might seem like a nice euro step, but showing probability and a clear link chain will really slam the argument home

- Second rebuttal needs to address turns from first rebuttal, otherwise as k dot said "your rebuttal a little too late."

- First summary doesn't need to extend defense unless you think its absolutely necessary for whatever reason.

- You need to extend BOTH the warrant AND impact of your argument(s) in later speeches

- In terms of speed if your flow and delivery is hot and clear I'm writing it down.

-Use author qualifications when first citing a piece of evidence (for extensions last name will suffice).