I had Gregg calibrate my 151 last night and I was very impressed with his professionalism and explanation of all the procedures he conducted. The results are fantastic. He calibrated Pure mode and added/calibrated ISF day and ISF night. He was able to double my contrast and walked me through each setting he made with a clear and thorough explanation of everything he did. Highly recommended for those looking to improve an already excellent Pioneer display. Thanks Gregg!