Just found out that Castle Creations is recalling some of their speed controls. On August 20th, Castle released a Service Advisory for the following speed controls: Mamba XL, Phoenix Icx HV, and Hydra Ice HV ESCs. From their advisory: "The performance of a component used in the Castle Phoenix Ice HV 60, Ice HV 80, Ice HV 120, Ice HV 160, Ice HV 160 Lite, Mamba XL and Hydra Ice HV 200 controllers has changed from the original specifications for that part. This tolerance change may lead to failure of the affected controllers."
Visit Castle's Service Advisory page for more information and the instructions for the recall.