There's also a guide for abs and other filaments prone to warping - but that's currently just in spanish:
http://documentation.fffworld.com/gu...azon_Guide.pdf

So I've got no idea what that's like. But I imagine it should be worth a read if you can read spanish :-)

Talon, if you want to start using flexibles then I'd recommend starting with polymakers polyflex.
Very easy to use and works with most unmodified extruders without any hassle.