Next time front and back will need changing. I thought I would try the Conti out on the back and if I like it I'll get a pair. If it's no good it just means the back moves about so no problem. Soon get through a rear if you put your mind to it.
Got to drop the pressure to 29 psi or 2 bar when it's on the bike. Set it to 40 psi for the overnight test and to seat it firmly on the rim. It runs at 15 psi off road and up to 33 psi on the road. No good for a sports bike but lots of fun on a single.
Even the dog helped. She nicked all the cardboard while it was waiting to be fitted on the rim.
Just to follow up, I greased everything and fitted the wheel.