The new seating system, balancing the tables ahead of time based on a judges last few events is a noble effort, but I have a couple reservations.
A judge is being averaged on their last few events. Clearly they could have a low average because they just had bad food the last few times or maybe they are a low judge. We really don't have any way of knowing. Now envision this "low" judge hits a table of good food and scores high. He was supposed to be the low guy on the table. Now we see an artificially high table.
What average is being used? Overall? I think it is impossible to re-seating judges for each category, so they must be using the overall value. What if a judge scores high in chicken, ribs and pork, but is a low scorer for brisket. With three high categories and one low his average will be high. Thus he will be the "high" guy on the table for brisket. Where he will score low driving that brisket table down. Just one example of the hundreds of situations that could pop up.
I am also worried about the possibility of an unintended incentive for judges to raise their scores. Every judge will be looking around the table wondering if he / she is the low guy. We are reaching the ceiling quickly and I don't think we need any more incentive for a judge to raise their scores. Judges shouldn't be worried about their average when they are judging any single event. I can't help but think that this will be in the back of every judges mind.
And then there are new judges, with no or very little experience. How are they handled?
I really think we should let random be random, seat the judges randomly and deal with the underlying statistics of the system... or change the system...