hello jackal! Thanks for your precious help!
i tried to install everything from scratch from one of the latest versions of el capitan, and it doesn't work anymore.
May you please provide both your config.plist configuration for (latest) el capitan and files provided in the EFI folder?
EDIT : fighting with clover it seems to work again but it's very unstable, compared to chameleon and old good osx versions...
PS: Is there anyone that is using clover and snow leopard ? may you please send me some directions to have snow leopard working with clover? Thanks a lot!! i know it's a bit off topic ... sorry for that