How Do You Speed Up Flex Builder?

Here is a article written by Brian Deitte(http://www.deitte.com/archives/2006/12/about_this_blog.htm) , explaining how to speed flex builder

Here are some of things we do:
1.Build every application in one project using multiple source paths (instead of using extra library projects)
2.Build parts of the applications as SWCs (instead of referencing their source paths)
3.Close extra projects
4.Use a system font instead of embedding fonts
5.Run "eclipse -clean" occasionally
6.Turn off "Copy non-embedded files to source folder"
7.Turn off "Build Automatically"

Things we haven't tried or just trying now and which may be helpful:
1.Build a lot of the application as SWCs or anything as an RSL
2.The Hellfire compiler (http://stopcoding.wordpress.com/2008/06/17/hellfire_compiler/)3.Use the Flex 4 SDK (or just the compiler portion) with Flex Builder
4.Merge some of the many Flex 4 compiler performance changes into a Flex 3 SDK, and using this in Flex Builder