[Krait]

NSW regs and Queensland are virtually the same. Based on the presumed requirement of towing a Cobra around an ATM >2000kg trailer seems slightly excessive.

I retrofitted electric brakes to my last car trailer as part of a total overhaul prior to rego transfer and they were great especially coming down Mt Victoria or Mt Ousley, however they were not required by the RTA at the time.

My current trailer is 400kg tare, 2000kg ATM which does not require electric brakes by QT or NSW however they may also be retro'd later.

Practically speaking I liked being able to use the electric brakes manually to reduce push understeer from the trailer on steep inclines and crappy weather.

Cheers