thanks for your input john.
there is a fellow here in queensland called Nik, who works for a local pinball company who seems to be a master at it.
his work is amazing...doesnt seem to many , if any others in the industry who specialise in this delicate process anymore.
I was hoping for a dozen different replys so the other members could benefit with local help from their areas.......
looks like my local guy is the man.