Hi I have recently taken my compex course and failed on Ex01.. they reported back I used the wrong crimps.. I am presuming the EX01 are all the same.. red crimps for lighting and switches and black crimps for the JB’s does this sound correct.. thanks Also when picking zones to place equipment in what dictates what can go in the zone or the gas group.. I.e if you had a zone 2 T6 but 2C gas is it always the worst case you go to.. thanks