What kind of acceleration do the post-incorporation setup documents support?
100% double-trigger acceleration - roughly speaking, this means that vesting will accelerate for a founder if (1) the founder is terminated without cause (2) in connection with a change of control of the company. For more information about vesting acceleration, we recommend Yokum Taku's excellent blog post about the topic.
Please note that if you want to have single-trigger acceleration, it is possible to add this by customizing the language in the Vesting Provision field with the assistance of an attorney. Before doing so, we'd encourage you to read Yokum's blog post, which outlines some reasons why you may not want to give founders single-trigger acceleration.