This is not a joke. I recently called a tech out because of a problem with my set (noise/waves in darker scenes of picture). The tech arrived -- we chatted -- he noted how good my greyscale looked. I said I recently had it ISF'd. He then went on to say how he is ISF certified, as well. In addition, he said, in his opinion, ISF has it wrong. He says contrast should be boosted to the max, with brightness around 50%. He noted the VIVID mode is actually the most ideal mode. I told him he's gotten to be joking. But, he was serious. He laughed when I said you don't want to see blooming on the test patterns. He said that was bull. Now, I'm not a tech, but I clearly explained why it was bad to have white level that high. Putting aside technical and aeshthic reasons, look how hard that is on the eyes! He did go on to clarify that this was his opinion --- which it certainly is. His WRONG opinion. Unbelievable. I'm glad I didn't have this guy ISF my set. In addition, he doesn't think there is even anything wrong with my set, but he is going to call a Sony engineer to see what they say. He saw the waves I am seeing, but thinks it's just a power supply problem somewhere and there is no way to verify what it is. He doesn't think it's the TV. On any rate, should I just called out another place? My set is only a month and a half old, so I'm thinking of just calling out another repair service. However, considering he is going to call Sony and speak with an engineer there, I'm not sure if it will matter with my problem.