It's working good with microb here. Just forget about pref.js it is not needed to tweak the device. Just download tune-up-startup, tune-up, bad_packets, htb, tc to a folder in /etc/tuneup. Copy tune-up-startup to /home/users. Edit tune-up-startup to point to /etc/tuneup then run the script. Other method is also glimpse into the code and copy the url's of the files and dl with wget. Hope this helps!