I have few small and a few lil big boards to route for my product. I generally prefer to hand route, but due to short of time and resources I would like to try out autorouters. I have shortlisted Electra and freeautorouting.net . I found freeautorouting.net easy to configure but did not get expected results and not not sophisticated enough. Electra seems to be a really sophisticated autorouter and I have a difficulty understanding the right settings for my routing job. I would like to have a tutorial (not a quick start) to precisely understand the configuration settings of ELECTRA. I am using Eagle for my PCB designing and exporting the dsn file.