I think that the "Fresh install - Where to start" wiki should be opened in the web browser at least one time on first boot, that way Sabayon newbies can sort fastest mirrors, update sysapps, entropy, rigo, equo the correct way using very easy to follow command line and then after that if they want to use rigo to update system then fine.
This idea is from PCLinuxOS, on first boot the browser opens up and it displays very useful info on what to do on the first system boot, like updating system before doing anything else, ect...!
Sabayon Linux MATE 64-bit
Gigabyte G41M-ES2L-->2gb ram
Intel Pentium Dual Core 2.60ghz-->E5300