I'm a coach and like more traditional LD. I'm not a fan of spreading in LD. This form of debate gives you a chance to shine as a good speaker. Being respectful is a must. There's no need to be derogatory to your opponent. Looking for strong framework and a full understanding of your case. Even if you didn't write your case you have to be able to express what it means in your own words. I love a good clash so bring it. Far fetched arguments with no backing just to mess up your opponent isn't impressive. I like strong substantiated arguments and your evidence better be legit.