I don't always agree with your posts but I agree on this. All my dd I have done by contacting 3Dicon at there office in person, or Schott and OU by e-mail or phone. I highly recommend everyone do the same. I check this chat and a couple others because every once in a small while somebody will post something of use that I had not considered. But honestly 98% posted here is garbage. What blows my mind is the constant negative nellies....if I felt like they post I sure would not waste my time here day after day. Life is to short.