Sorry, BJC. I should have been more clear. I was not commenting on YOUR post, but on all the others that you were commenting on. I read yours as a summation of my thoughts. I just find it amusing, all the back and forth discussion on whatever topic by the 'experts', but no one suggests checking with the REAL authorities---those who make the stuff. Which is what I did. If and when I ever continue with my build I will go by what is suggested by System Three and use Cabosil.