My point about drawing a line is that it needs to be defined (i.e. you can't use a broom with coefficient of friction greater than X (for example, I claim not scientific basis on this)). Having top teams indicate they don't like a change is a good signal to the governing body that sets rules but other teams will use the technology if it is better.

They can't just add a rule that says you can't use Brand X equipment - it has to declare limits on what the equipment is.