There was a 4mm difference from one quadrant of the plate to the next.
I got another plate of an old Little bob, which stopped the vibration, there is still a little bit there but it is much better.
Again I will have to slow this engine down.
It is starting on the second pull.
You can tell a good engine when you pull the starter by the noise it makes and the feel of the compression, this has come with experience for me.
I have other engines here waiting for parts that I will put together off this thread.