If anyone is looking for SimonK ESC's with quick shipping from the USA, there are 20A & 30A on ebay right now. They are factory flashed with SimonK Firmware. Links below:
20A SimonK ESC
30A SimonK ESC
If you want to know more about why you need these, OpenPilot's Wiki explains it well:
http://wiki.openpilot.org/display/Doc/RapidESCs
20A SimonK ESC
30A SimonK ESC
If you want to know more about why you need these, OpenPilot's Wiki explains it well:
http://wiki.openpilot.org/display/Doc/RapidESCs