I have installed the content creation kit (CCK) K2, but I have not used the 'import Joomla content' button yet.

I know that once the articles within Joomla are imported, they are then present within K2; I also know that the articles are simply copied to K2 and that they remain within the built-in Joomla article management system.

However, I wish to know if can remove the articles from within the built-in Joomla article management system since I now have all my articles (as items) within K2?

I assume that there is no point in having the same content within the site as both an 'article' and an 'item'?