Wired up the relay for one of the headlight mainbeams and it still works - amazing!
Only did one though as I didn't actually have all the wiring I need etc so one side at a time is fine.
Then moved on to the steering wheel and non cancelling indicators. The steering wheel I had fitted is on loan from BRP and is an original TR8 type. The boss though had flaking black paint and I have been having trouble lining it up straight.
So first I removed it and took it apart. Then cleaned up the boss and gave it a few coats of matt black paint as below.
Then put it all together and no, the indicators still don't cancel :-)
The steering wheel looks and feels great though :-)