I went through 14-15 revisions, all reducing timing in that area and smoothing it out and I was still seeing the same amount of knock. Running the fix for the stumble (http://www.iwsti.com/forums/ecu-tuning-performance-electronics/203089-final-tuning-solution-gr-stumble-2400-3000-rpm-using-ap.html) almost completely cured me of my knock in that region. I was a little anxious to fix it so I loaded the map before all cells were black (you'll see what I mean) and my knock was almost completely cured and I was able to go back 12 revisions and be almost knock free. I have since flashed to stage 2 and kept the updated MRP table. The acceleration is a tiny bit rougher so i am going to run the table again and add the new values. So far, the corrections are MUCH fewer and not nearly as drastic (max is 4.3 as opposed to -13.1 last time)