Emory switch

The Emory switch is a variant of splitting the Negative that reverses the order of on-case and off-case arguments. Off-case arguments are raised in the 1NC, and on-case arguments are raised in the 2NC. The 1NR then responds to the 2AC as usual.

Strategic advantages
The Emory switch shares many of the same strategic advantages with splitting the block: since the first Negative speaker only really has to talk about his own arguments, the flow of the round may be simpler.

Because significance and other on-case arguments are not introduced until the 2NC, the Affirmative cannot respond until the 1AR. Thus, the 1AR only has five minutes to both continue off-case refutations and defend major attacks on their case. If the Negative expects that on-case arguments will be the most important issue in the round, or wants to bog down the Affirmative with technicalities in the 1AR, they may feel that this gives them a strategic edge.

Since off-case arguments are often more fertile ground for extensions than on-case arguments, the Emory switch can allow the Negative to do a sort of pseudo-shell-and-extend while still splitting the Negative. If the second Negative speaker has time, they may introduce extensions in the 2NC as well as on-case arguments. A traditional split Negative does not allow for this possibility.

As with a traditional split Negative, deciding to run the Emory switch may be based on speaker preferences. For example, if one speaker is much better at wrapping up the round at the end, but prefers to run on-case arguments, it may be advisable to run an Emory switch with him or her as the second Negative speaker (delivering both the 2NC and the 2NR.)