Our wiki is the only documentation at the moment for entropy. Knowing entropy generally requires a knowledge of portage as that is where entropy comes from. So the gentoo documentation is always a good source of information. Try for config files:http://www.gentoo.org/doc/en/handbook/h ... t=3&chap=4
Config files are something you will have to get to know as to which ones you want to merge or not. Some you do, some you don't, pending on your system of course. Try:http://wiki.sabayonlinux.org/index.php? ... troduction
A widely used rule of thumb is - if you didn't make changes to the config files, it's safe to merge them. It's important to know what config files do what as you will not want some to overwrite or you could end starting your computer up in a completely different interface. It's important to deal with the config files as some things won't work unless you do update the config files. So bottom line, learn the important config files. The more you understand gentoo, the more you understand of Sabayon.