Generate as many shortcodes. Keep pages synchronized for split testing, or reuse a specific peice of code on multiple pages.
shortcode-generator
folder to the /wp-content/plugins/
directoryOnce the plugin is active, go to the ShortCodes button on the left menu. Select the type of shortcode you would like, and click Add. Once created, you will be given a shortcode to place in your pages, posts, or template files.
Shortcodes can contain other shortcodes. This allows for great custommization and usability, however, if a shortcode contains itself it will cause problems with your pages. Make sure your shortcodes do not contain themselves.