Upon popular request, my stock ESC settings from the Portuguese nationals today at Pista de Radiomodelismo do Monsanto! This is for the EFRA 13.5T blinky class. I used a 30mm HUDY fan, but I recommend a 40mm one for additional cooling, and less fade. My battery of choice was the Sunpadow RC 8000 Platin - superb punch even until the end of the 7 minute long finals today! As for the FDR, for tracks with really long straights, I can recommend an FDR as low as 4.1. But 4.3 was just perfect for the track where I raced today. For smaller, more technical tracks, you can try an FDR around 4.5. Motor timing - I ran 50 degrees. Make sure to monitor your motor temp, and increase the end bell timing cautiously.