Are these suitable as removable links? and failsafe question.

[leorcc]

2. - I was also reading about the requirement for a fail safe. I have one of the 40 quid Giant Shark 2.4ghz sets from Giant Cod etc. Are these acceptable as a built in fail safe? In addition I have a Sabertooth ESC, is this known to also failsafe?

Should be okay, just test it on your bench before going to an event. Give the robot full forward, and while in full forward switch off the transmitter. If the robots stops within 5 seconds you are good to go.