Bakers, if I remember previous installations over old versions of Sonar I think I opted for custom install and deselected all the plugins and instruments that were already on my system. Are there any plugins that have been updated this time around that should be installed again (and will they automatically be installed over previous ones). Is there even a portion of the multi part download that we can ignore? Maybe you could write up a quick blog post on 'how to best install X2 for existing X1 users' when the time is right?

  Great Idea. Installation is a delicate thing. Do it right and it's a breeze. Get one little think wrong, and all hell can break loose.

I'd install everything if I were you - you don;t know what little performance enhancements have been made to the stock plugs - I'm not saying there will be any - but certainly Rapture has been updated.