Got a couple of new hub nuts and local AP branch because the threads on the old ones didn't look that healthy.
Torqued up from 150Nm to gauge how far the wrench turned on each increment up to 210Nm and used that to guess how much extra tightness the nut need to get to 235Nm.
Used my new Sealey 750mm 1/2 breaker bar on the job and it works a treat. I also have the Sealey 450mm 3/8 breaker bar and I recommend them both